Convert.ToString Método

Definición

Espacio de nombres:

System

Ensamblado:

System.Runtime.dll

Convierte el valor especificado en su representación de cadena equivalente.

Sobrecargas

ToString(Int32, IFormatProvider)	Convierte el valor del entero de 32 bits con signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Int16, Int32)	Convierte el valor de un entero de 16 bits con signo en su representación de cadena equivalente en una base especificada.
ToString(DateTime, IFormatProvider)	Convierte el valor de la estructura DateTime especificada en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Double, IFormatProvider)	Convierte el valor del número de punto flotante de precisión doble especificado en la representación de cadena equivalente.
ToString(Decimal, IFormatProvider)	Convierte el valor del número decimal especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Int32, Int32)	Convierte el valor de un entero de 32 bits con signo en su representación de cadena equivalente en una base especificada.
ToString(Int16, IFormatProvider)	Convierte el valor del entero de 16 bits con signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Int64, IFormatProvider)	Convierte el valor del entero de 64 bits con signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Single, IFormatProvider)	Convierte el valor del número de punto flotante de precisión sencilla especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Object, IFormatProvider)	Convierte el valor del objeto especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(SByte, IFormatProvider)	Convierte el valor del entero de 8 bits con signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(String, IFormatProvider)	Devuelve la instancia de la cadena especificada; no se efectúa una conversión real.
ToString(UInt16, IFormatProvider)	Convierte el valor del entero de 16 bits sin signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(UInt32, IFormatProvider)	Convierte el valor del entero de 32 bits sin signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(UInt64, IFormatProvider)	Convierte el valor del entero de 64 bits sin signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Char, IFormatProvider)	Convierte el valor del carácter Unicode especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Int64, Int32)	Convierte el valor de un entero de 64 bits con signo en su representación de cadena equivalente en una base especificada.
ToString(Byte, Int32)	Convierte el valor de un entero de 8 bits sin signo en su representación de cadena equivalente en una base especificada.
ToString(Boolean, IFormatProvider)	Convierte el valor booleano especificado en su representación de cadena equivalente.
ToString(Byte, IFormatProvider)	Convierte el valor del entero de 8 bits sin signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.
ToString(Boolean)	Convierte el valor booleano especificado en su representación de cadena equivalente.
ToString(Byte)	Convierte el valor del entero de 8 bits sin signo especificado en la representación de cadena equivalente.
ToString(Char)	Convierte el valor del carácter Unicode especificado en la representación de cadena equivalente.
ToString(DateTime)	Convierte el valor de la estructura DateTime especificada en su representación de cadena equivalente.
ToString(Double)	Convierte el valor del número de punto flotante de precisión doble especificado en la representación de cadena equivalente.
ToString(Int16)	Convierte el valor del entero de 16 bits con signo especificado en la representación de cadena equivalente.
ToString(Int32)	Convierte el valor del entero de 32 bits con signo especificado en la representación de cadena equivalente.
ToString(Decimal)	Convierte el valor de un número decimal especificado en su representación de cadena equivalente.
ToString(Object)	Convierte el valor del objeto especificado en su representación de cadena equivalente.
ToString(SByte)	Convierte el valor del entero de 8 bits con signo especificado en la representación de cadena equivalente.
ToString(Single)	Convierte el valor del número de punto flotante de precisión sencilla especificado en la representación de cadena equivalente.
ToString(String)	Devuelve la instancia de la cadena especificada; no se efectúa una conversión real.
ToString(UInt16)	Convierte el valor del entero de 16 bits sin signo especificado en la representación de cadena equivalente.
ToString(UInt32)	Convierte el valor del entero de 32 bits sin signo especificado en la representación de cadena equivalente.
ToString(UInt64)	Convierte el valor del entero de 64 bits sin signo especificado en la representación de cadena equivalente.
ToString(Int64)	Convierte el valor del entero de 64 bits con signo especificado en la representación de cadena equivalente.

ToString(Int32, IFormatProvider)

Source:

Convert.cs

Convierte el valor del entero de 32 bits con signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(int value, IFormatProvider ^ provider);

public static string ToString (int value, IFormatProvider? provider);

static member ToString : int * IFormatProvider -> string

Public Shared Function ToString (value As Integer, provider As IFormatProvider) As String

Parámetros

value

Int32

Entero de 32 bits con signo que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se define una clase personalizada NumberFormatInfo que define su signo negativo como la cadena "~" y su signo positivo como la cadena "!". A continuación, llama al ToString(Int32, IFormatProvider) método para convertir cada elemento en una matriz de enteros en su representación de cadena equivalente. La conversión usa la referencia cultural invariable, así como el objeto personalizado NumberFormatInfo .

int[] numbers = { Int32.MinValue, Int32.MaxValue};
System.Globalization.NumberFormatInfo nfi = new System.Globalization.NumberFormatInfo();
nfi.NegativeSign = "~";
nfi.PositiveSign = "!";

foreach (int number in numbers)
   Console.WriteLine("{0,-12}  -->  {1,12}",
                     Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture),
                     Convert.ToString(number, nfi));
// The example displays the following output:
//       -2147483648  -->  ~2147483648
//       2147483647  -->  2147483647

let numbers = [| Int32.MinValue; Int32.MaxValue |]
let nfi = NumberFormatInfo()
nfi.NegativeSign <- "~"
nfi.PositiveSign <- "!"

for number in numbers do
    printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture),-12}  -->  {Convert.ToString(number, nfi),12}"
// The example displays the following output:
//       -2147483648  -->  ~2147483648
//       2147483647  -->  2147483647

Dim numbers() As Integer = { Int32.MinValue, Int32.MaxValue}
Dim nfi As New System.Globalization.NumberFormatInfo()
nfi.NegativeSign = "~"
nfi.PositiveSign = "!"

For Each number As Integer In numbers
   Console.WriteLine("{0,-12}  -->  {1,12}", _
                     Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture), _
                     Convert.ToString(number, nfi))
Next
' The example displays the following output:
'       -2147483648  -->  ~2147483648
'       2147483647   -->  2147483647

Comentarios

Esta implementación es idéntica a Int32.ToString(IFormatProvider).

ToString(Int16, Int32)

Source:

Convert.cs

Convierte el valor de un entero de 16 bits con signo en su representación de cadena equivalente en una base especificada.

public:
 static System::String ^ ToString(short value, int toBase);

public static string ToString (short value, int toBase);

static member ToString : int16 * int -> string

Public Shared Function ToString (value As Short, toBase As Integer) As String

Parámetros

value

Int16

Entero de 16 bits con signo que se va a convertir.

toBase

Int32

Base del valor devuelto, que debe ser 2, 8, 10 ó 16.

Devoluciones

String

Representación de cadena de value en la base toBase.

Excepciones

ArgumentException

toBase no es 2, 8, 10 o 16.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de enteros con signo de 16 bits en sus representaciones de cadena binarias, octales, decimales y hexadecimales equivalentes.

int[] bases = { 2, 8, 10, 16};
short[] numbers = { Int16.MinValue, -13621, -18, 12, 19142, Int16.MaxValue };

foreach (int baseValue in bases)
{
   Console.WriteLine("Base {0} conversion:", baseValue);
   foreach (short number in numbers)
   {
      Console.WriteLine("   {0,-8}  -->  0x{1}",
                        number, Convert.ToString(number, baseValue));
   }
}
// The example displays the following output:
//       Base 2 conversion:
//          -32768    -->  0x1000000000000000
//          -13621    -->  0x1100101011001011
//          -18       -->  0x1111111111101110
//          12        -->  0x1100
//          19142     -->  0x100101011000110
//          32767     -->  0x111111111111111
//       Base 8 conversion:
//          -32768    -->  0x100000
//          -13621    -->  0x145313
//          -18       -->  0x177756
//          12        -->  0x14
//          19142     -->  0x45306
//          32767     -->  0x77777
//       Base 10 conversion:
//          -32768    -->  0x-32768
//          -13621    -->  0x-13621
//          -18       -->  0x-18
//          12        -->  0x12
//          19142     -->  0x19142
//          32767     -->  0x32767
//       Base 16 conversion:
//          -32768    -->  0x8000
//          -13621    -->  0xcacb
//          -18       -->  0xffee
//          12        -->  0xc
//          19142     -->  0x4ac6
//          32767     -->  0x7fff

let bases = [| 2; 8; 10; 16 |]
let numbers = [| Int16.MinValue; -13621s; -18s; 12s; 19142s; Int16.MaxValue |]

for baseValue in bases do
    printfn $"Base {baseValue} conversion:"
    for number in numbers do
        printfn $"   {number,-8}  -->  0x{Convert.ToString(number, baseValue)}"
// The example displays the following output:
//       Base 2 conversion:
//          -32768    -->  0x1000000000000000
//          -13621    -->  0x1100101011001011
//          -18       -->  0x1111111111101110
//          12        -->  0x1100
//          19142     -->  0x100101011000110
//          32767     -->  0x111111111111111
//       Base 8 conversion:
//          -32768    -->  0x100000
//          -13621    -->  0x145313
//          -18       -->  0x177756
//          12        -->  0x14
//          19142     -->  0x45306
//          32767     -->  0x77777
//       Base 10 conversion:
//          -32768    -->  0x-32768
//          -13621    -->  0x-13621
//          -18       -->  0x-18
//          12        -->  0x12
//          19142     -->  0x19142
//          32767     -->  0x32767
//       Base 16 conversion:
//          -32768    -->  0x8000
//          -13621    -->  0xcacb
//          -18       -->  0xffee
//          12        -->  0xc
//          19142     -->  0x4ac6
//          32767     -->  0x7fff

Dim bases() As Integer = { 2, 8, 10, 16}
Dim numbers() As Short = { Int16.MinValue, -13621, -18, 12, 19142, _
                           Int16.MaxValue }

For Each base As Integer In bases
   Console.WriteLine("Base {0} conversion:", base)
   For Each number As Short In numbers
      Console.WriteLine("   {0,-8}  -->  0x{1}", _
                        number, Convert.ToString(number, base))
   Next
Next
' The example displays the following output:
'       Base 2 conversion:
'          -32768    -->  0x1000000000000000
'          -13621    -->  0x1100101011001011
'          -18       -->  0x1111111111101110
'          12        -->  0x1100
'          19142     -->  0x100101011000110
'          32767     -->  0x111111111111111
'       Base 8 conversion:
'          -32768    -->  0x100000
'          -13621    -->  0x145313
'          -18       -->  0x177756
'          12        -->  0x14
'          19142     -->  0x45306
'          32767     -->  0x77777
'       Base 10 conversion:
'          -32768    -->  0x-32768
'          -13621    -->  0x-13621
'          -18       -->  0x-18
'          12        -->  0x12
'          19142     -->  0x19142
'          32767     -->  0x32767
'       Base 16 conversion:
'          -32768    -->  0x8000
'          -13621    -->  0xcacb
'          -18       -->  0xffee
'          12        -->  0xc
'          19142     -->  0x4ac6
'          32767     -->  0x7fff

let bases = [2; 8; 10; 16]
let numbers = [ Int16.MinValue; -13621s; -18s; 12s; 19142s; Int16.MaxValue ]

for baseValue in bases do
    printfn "Base %i conversion:" baseValue
    for number in numbers do
        printfn "   % -8i  -->  0x%s" number (Convert.ToString (number, baseValue))
// The example displays the following output:
//     Base 2 conversion:
//        -32768    -->  0x1000000000000000
//        -13621    -->  0x1100101011001011
//        -18       -->  0x1111111111101110
//         12       -->  0x1100
//         19142    -->  0x100101011000110
//         32767    -->  0x111111111111111
//     Base 8 conversion:
//        -32768    -->  0x100000
//        -13621    -->  0x145313
//        -18       -->  0x177756
//         12       -->  0x14
//         19142    -->  0x45306
//         32767    -->  0x77777
//     Base 10 conversion:
//        -32768    -->  0x-32768
//        -13621    -->  0x-13621
//        -18       -->  0x-18
//         12       -->  0x12
//         19142    -->  0x19142
//         32767    -->  0x32767
//     Base 16 conversion:
//        -32768    -->  0x8000
//        -13621    -->  0xcacb
//        -18       -->  0xffee
//         12       -->  0xc
//         19142    -->  0x4ac6
//         32767    -->  0x7fff

Comentarios

Si value es positivo y toBase es 2, 8 o 16, la cadena devuelta usa la representación de signo y magnitud. Si value es negativo y toBase es 2, 8 o 16, la cadena devuelta usa la representación complementaria de dos. Esto significa que el bit de orden alto del byte de orden alto (bit 15) se interpreta como bit de signo. ToString(Int16, Int32) Si se llama al método para crear una cadena que se convertirá más adelante en un número, se debe llamar a un método correspondiente que supone que se debe llamar a una representación numérica similar para realizar la conversión. Estos métodos incluyen Convert.ToInt16(String, Int32) y Int16.Parse(String, NumberStyles).

ToString(DateTime, IFormatProvider)

Source:

Convert.cs

Convierte el valor de la estructura DateTime especificada en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(DateTime value, IFormatProvider ^ provider);

public static string ToString (DateTime value, IFormatProvider? provider);

static member ToString : DateTime * IFormatProvider -> string

Public Shared Function ToString (value As DateTime, provider As IFormatProvider) As String

Parámetros

value

DateTime

Valor de fecha y hora que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte un DateTime valor en su representación de cadena equivalente en ocho referencias culturales diferentes.

// Specify the date to be formatted using various cultures.
DateTime tDate = new DateTime(2010, 4, 15, 20, 30, 40, 333);
// Specify the cultures.
string[] cultureNames = { "en-US", "es-AR", "fr-FR", "hi-IN",
                          "ja-JP", "nl-NL", "ru-RU", "ur-PK" };

Console.WriteLine("Converting the date {0}: ",
                  Convert.ToString(tDate,
                          System.Globalization.CultureInfo.InvariantCulture));

foreach (string cultureName in cultureNames)
{
   System.Globalization.CultureInfo culture = new System.Globalization.CultureInfo(cultureName);
   string dateString = Convert.ToString(tDate, culture);
   Console.WriteLine("   {0}:  {1,-12}",
                     culture.Name, dateString);
}
// The example displays the following output:
//       Converting the date 04/15/2010 20:30:40:
//          en-US:  4/15/2010 8:30:40 PM
//          es-AR:  15/04/2010 08:30:40 p.m.
//          fr-FR:  15/04/2010 20:30:40
//          hi-IN:  15-04-2010 20:30:40
//          ja-JP:  2010/04/15 20:30:40
//          nl-NL:  15-4-2010 20:30:40
//          ru-RU:  15.04.2010 20:30:40
//          ur-PK:  15/04/2010 8:30:40 PM

// Specify the date to be formatted using various cultures.
let tDate = DateTime(2010, 4, 15, 20, 30, 40, 333)
// Specify the cultures.
let cultureNames = 
    [| "en-US"; "es-AR"; "fr-FR"; "hi-IN";
        "ja-JP"; "nl-NL"; "ru-RU"; "ur-PK" |]

printfn $"Converting the date {Convert.ToString(tDate, CultureInfo.InvariantCulture)}: "

for cultureName in cultureNames do
    let culture = CultureInfo cultureName
    let dateString = Convert.ToString(tDate, culture)
    printfn $"   {culture.Name}:  {dateString,-12}"
// The example displays the following output:
//       Converting the date 04/15/2010 20:30:40:
//          en-US:  4/15/2010 8:30:40 PM
//          es-AR:  15/04/2010 08:30:40 p.m.
//          fr-FR:  15/04/2010 20:30:40
//          hi-IN:  15-04-2010 20:30:40
//          ja-JP:  2010/04/15 20:30:40
//          nl-NL:  15-4-2010 20:30:40
//          ru-RU:  15.04.2010 20:30:40
//          ur-PK:  15/04/2010 8:30:40 PM

' Specify the date to be formatted using various cultures.
Dim tDate As New Date(2010, 4, 15, 20, 30, 40, 333)
' Specify the cultures.
Dim cultureNames() As String = { "en-US", "es-AR", "fr-FR", "hi-IN", _
                                 "ja-JP", "nl-NL", "ru-RU", "ur-PK" }

Console.WriteLine("Converting the date {0}: ", _
                  Convert.ToString(tDate, _
                          System.Globalization.CultureInfo.InvariantCulture))

For Each cultureName As String In CultureNames
   Dim culture As New System.Globalization.CultureInfo(cultureName)
   Dim dateString As String = Convert.ToString(tDate, culture)
   Console.WriteLine("   {0}:  {1,-12}", _
                     culture.Name, dateString)
Next             
' The example displays the following output:
'       Converting the date 04/15/2010 20:30:40:
'          en-US:  4/15/2010 8:30:40 PM
'          es-AR:  15/04/2010 08:30:40 p.m.
'          fr-FR:  15/04/2010 20:30:40
'          hi-IN:  15-04-2010 20:30:40
'          ja-JP:  2010/04/15 20:30:40
'          nl-NL:  15-4-2010 20:30:40
'          ru-RU:  15.04.2010 20:30:40
'          ur-PK:  15/04/2010 8:30:40 PM

Comentarios

Esta implementación es idéntica a DateTime.ToString(IFormatProvider).

ToString(Double, IFormatProvider)

Source:

Convert.cs

Convierte el valor del número de punto flotante de precisión doble especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(double value, IFormatProvider ^ provider);

public static string ToString (double value, IFormatProvider? provider);

static member ToString : double * IFormatProvider -> string

Public Shared Function ToString (value As Double, provider As IFormatProvider) As String

Parámetros

value

Double

Número de punto flotante de precisión doble que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de Double valores en su representación de cadena equivalente en cuatro referencias culturales diferentes.

// Define an array of numbers to display.
double[] numbers = { -1.5345e16, -123.4321, 19092.123, 1.1734231911290e16 };
// Define the culture names used to display them.
string[] cultureNames = { "en-US", "fr-FR", "ja-JP", "ru-RU" };

foreach (double number in numbers)
{
   Console.WriteLine("{0}:", Convert.ToString(number,
                             System.Globalization.CultureInfo.InvariantCulture));
   foreach (string cultureName in cultureNames)
   {
      System.Globalization.CultureInfo culture = new System.Globalization.CultureInfo(cultureName);
      Console.WriteLine("   {0}: {1,20}",
                        culture.Name, Convert.ToString(number, culture));
   }
   Console.WriteLine();
}
// The example displays the following output:
//    -1.5345E+16:
//       en-US:          -1.5345E+16
//       fr-FR:          -1,5345E+16
//       ja-JP:          -1.5345E+16
//       ru-RU:          -1,5345E+16
//
//    -123.4321:
//       en-US:            -123.4321
//       fr-FR:            -123,4321
//       ja-JP:            -123.4321
//       ru-RU:            -123,4321
//
//    19092.123:
//       en-US:            19092.123
//       fr-FR:            19092,123
//       ja-JP:            19092.123
//       ru-RU:            19092,123
//
//    1.173423191129E+16:
//       en-US:   1.173423191129E+16
//       fr-FR:   1,173423191129E+16
//       ja-JP:   1.173423191129E+16
//       ru-RU:   1,173423191129E+16

// Define an array of numbers to display.
let numbers = [| -1.5345e16; -123.4321; 19092.123; 1.1734231911290e16 |]
// Define the culture names used to display them.
let cultureNames = [| "en-US"; "fr-FR"; "ja-JP"; "ru-RU" |]

for number in numbers do
    printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture)}:"
    for cultureName in cultureNames do
        let culture = CultureInfo cultureName
        printfn "   {culture.Name}: {Convert.ToString(number, culture),20}"
    printfn ""
// The example displays the following output:
//    -1.5345E+16:
//       en-US:          -1.5345E+16
//       fr-FR:          -1,5345E+16
//       ja-JP:          -1.5345E+16
//       ru-RU:          -1,5345E+16
//
//    -123.4321:
//       en-US:            -123.4321
//       fr-FR:            -123,4321
//       ja-JP:            -123.4321
//       ru-RU:            -123,4321
//
//    19092.123:
//       en-US:            19092.123
//       fr-FR:            19092,123
//       ja-JP:            19092.123
//       ru-RU:            19092,123
//
//    1.173423191129E+16:
//       en-US:   1.173423191129E+16
//       fr-FR:   1,173423191129E+16
//       ja-JP:   1.173423191129E+16
//       ru-RU:   1,173423191129E+16

' Define an array of numbers to display.
Dim numbers() As Double = { -1.5345e16, -123.4321, 19092.123, _
                            1.1734231911290e16 }
' Define the culture names used to display them.
Dim cultureNames() As String = { "en-US", "fr-FR", "ja-JP", "ru-RU" }

For Each number As Double In numbers
   Console.WriteLine("{0}:", Convert.ToString(number, _
                             System.Globalization.CultureInfo.InvariantCulture))
   For Each cultureName As String In cultureNames
      Dim culture As New System.Globalization.CultureInfo(cultureName)
      Console.WriteLine("   {0}: {1,20}", _
                        culture.Name, Convert.ToString(number, culture))
   Next
   Console.WriteLine()
Next   
' The example displays the following output:
'    -1.5345E+16:
'       en-US:          -1.5345E+16
'       fr-FR:          -1,5345E+16
'       ja-JP:          -1.5345E+16
'       ru-RU:          -1,5345E+16
'    
'    -123.4321:
'       en-US:            -123.4321
'       fr-FR:            -123,4321
'       ja-JP:            -123.4321
'       ru-RU:            -123,4321
'    
'    19092.123:
'       en-US:            19092.123
'       fr-FR:            19092,123
'       ja-JP:            19092.123
'       ru-RU:            19092,123
'    
'    1.173423191129E+16:
'       en-US:   1.173423191129E+16
'       fr-FR:   1,173423191129E+16
'       ja-JP:   1.173423191129E+16
'       ru-RU:   1,173423191129E+16

Comentarios

Esta implementación es idéntica a Double.ToString(IFormatProvider)

ToString(Decimal, IFormatProvider)

Source:

Convert.cs

Convierte el valor del número decimal especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(System::Decimal value, IFormatProvider ^ provider);

public static string ToString (decimal value, IFormatProvider? provider);

static member ToString : decimal * IFormatProvider -> string

Public Shared Function ToString (value As Decimal, provider As IFormatProvider) As String

Parámetros

value

Decimal

Número decimal que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de Decimal valores en su representación de cadena equivalente en cuatro referencias culturales diferentes.

// Define an array of numbers to display.
decimal[] numbers = { 1734231911290.16m, -17394.32921m,
                      3193.23m, 98012368321.684m };
// Define the culture names used to display them.
string[] cultureNames = { "en-US", "fr-FR", "ja-JP", "ru-RU" };

foreach (decimal number in numbers)
{
   Console.WriteLine("{0}:", Convert.ToString(number,
                             System.Globalization.CultureInfo.InvariantCulture));
   foreach (string cultureName in cultureNames)
   {
      System.Globalization.CultureInfo culture = new System.Globalization.CultureInfo(cultureName);
      Console.WriteLine("   {0}: {1,20}",
                        culture.Name, Convert.ToString(number, culture));
   }
   Console.WriteLine();
}
// The example displays the following output:
//    1734231911290.16:
//       en-US:     1734231911290.16
//       fr-FR:     1734231911290,16
//       ja-JP:     1734231911290.16
//       ru-RU:     1734231911290,16
//
//    -17394.32921:
//       en-US:         -17394.32921
//       fr-FR:         -17394,32921
//       ja-JP:         -17394.32921
//       ru-RU:         -17394,32921
//
//    3193.23:
//       en-US:              3193.23
//       fr-FR:              3193,23
//       ja-JP:              3193.23
//       ru-RU:              3193,23
//
//    98012368321.684:
//       en-US:      98012368321.684
//       fr-FR:      98012368321,684
//       ja-JP:      98012368321.684
//       ru-RU:      98012368321,684

// Define an array of numbers to display.
let numbers = 
    [| 1734231911290.16m; -17394.32921m; 3193.23m; 98012368321.684m |]
// Define the culture names used to display them.
let cultureNames = [| "en-US"; "fr-FR"; "ja-JP"; "ru-RU" |]

for number in numbers do
    printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture)}:"
    for cultureName in cultureNames do
        let culture = CultureInfo cultureName
        printfn $"   {culture.Name}: {Convert.ToString(number, culture),20}"
    printfn ""
// The example displays the following output:
//    1734231911290.16:
//       en-US:     1734231911290.16
//       fr-FR:     1734231911290,16
//       ja-JP:     1734231911290.16
//       ru-RU:     1734231911290,16
//
//    -17394.32921:
//       en-US:         -17394.32921
//       fr-FR:         -17394,32921
//       ja-JP:         -17394.32921
//       ru-RU:         -17394,32921
//
//    3193.23:
//       en-US:              3193.23
//       fr-FR:              3193,23
//       ja-JP:              3193.23
//       ru-RU:              3193,23
//
//    98012368321.684:
//       en-US:      98012368321.684
//       fr-FR:      98012368321,684
//       ja-JP:      98012368321.684
//       ru-RU:      98012368321,684

' Define an array of numbers to display.
Dim numbers() As Decimal = { 1734231911290.16d, -17394.32921d, _
                             3193.23d, 98012368321.684d }
' Define the culture names used to display them.
Dim cultureNames() As String = { "en-US", "fr-FR", "ja-JP", "ru-RU" }

For Each number As Decimal In numbers
   Console.WriteLine("{0}:", Convert.ToString(number, _
                             System.Globalization.CultureInfo.InvariantCulture))
   For Each cultureName As String In cultureNames
      Dim culture As New System.Globalization.CultureInfo(cultureName)
      Console.WriteLine("   {0}: {1,20}", _
                        culture.Name, Convert.ToString(number, culture))
   Next
   Console.WriteLine()
Next   
' The example displays the following output:
'    1734231911290.16:
'       en-US:     1734231911290.16
'       fr-FR:     1734231911290,16
'       ja-JP:     1734231911290.16
'       ru-RU:     1734231911290,16
'    
'    -17394.32921:
'       en-US:         -17394.32921
'       fr-FR:         -17394,32921
'       ja-JP:         -17394.32921
'       ru-RU:         -17394,32921
'    
'    3193.23:
'       en-US:              3193.23
'       fr-FR:              3193,23
'       ja-JP:              3193.23
'       ru-RU:              3193,23
'    
'    98012368321.684:
'       en-US:      98012368321.684
'       fr-FR:      98012368321,684
'       ja-JP:      98012368321.684
'       ru-RU:      98012368321,684

Comentarios

Esta implementación es idéntica a Decimal.ToString(IFormatProvider).

ToString(Int32, Int32)

Source:

Convert.cs

Convierte el valor de un entero de 32 bits con signo en su representación de cadena equivalente en una base especificada.

public:
 static System::String ^ ToString(int value, int toBase);

public static string ToString (int value, int toBase);

static member ToString : int * int -> string

Public Shared Function ToString (value As Integer, toBase As Integer) As String

Parámetros

value

Int32

Entero de 32 bits con signo que se va a convertir.

toBase

Int32

Base del valor devuelto, que debe ser 2, 8, 10 ó 16.

Devoluciones

String

Representación de cadena de value en la base toBase.

Excepciones

ArgumentException

toBase no es 2, 8, 10 o 16.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de enteros en sus representaciones de cadena binarias, hexadecimales, decimales y hexadecimales equivalentes.

int[] bases = { 2, 8, 10, 16};
int[] numbers = { Int32.MinValue, -19327543, -13621, -18, 12,
                             19142, Int32.MaxValue };

foreach (int baseValue in bases)
{
   Console.WriteLine("Base {0} conversion:", baseValue);
   foreach (int number in numbers)
   {
      Console.WriteLine("   {0,-15}  -->  0x{1}",
                        number, Convert.ToString(number, baseValue));
   }
}
// The example displays the following output:
//    Base 2 conversion:
//       -2147483648      -->  0x10000000000000000000000000000000
//       -19327543        -->  0x11111110110110010001010111001001
//       -13621           -->  0x11111111111111111100101011001011
//       -18              -->  0x11111111111111111111111111101110
//       12               -->  0x1100
//       19142            -->  0x100101011000110
//       2147483647       -->  0x1111111111111111111111111111111
//    Base 8 conversion:
//       -2147483648      -->  0x20000000000
//       -19327543        -->  0x37666212711
//       -13621           -->  0x37777745313
//       -18              -->  0x37777777756
//       12               -->  0x14
//       19142            -->  0x45306
//       2147483647       -->  0x17777777777
//    Base 10 conversion:
//       -2147483648      -->  0x-2147483648
//       -19327543        -->  0x-19327543
//       -13621           -->  0x-13621
//       -18              -->  0x-18
//       12               -->  0x12
//       19142            -->  0x19142
//       2147483647       -->  0x2147483647
//    Base 16 conversion:
//       -2147483648      -->  0x80000000
//       -19327543        -->  0xfed915c9
//       -13621           -->  0xffffcacb
//       -18              -->  0xffffffee
//       12               -->  0xc
//       19142            -->  0x4ac6
//       2147483647       -->  0x7fffffff

let bases = [| 2; 8; 10; 16 |]
let numbers = 
    [| Int32.MinValue; -19327543; -13621; -18; 12; 19142; Int32.MaxValue |]

for baseValue in bases do
    printfn $"Base {baseValue} conversion:"
    for number in numbers do
        printfn $"   {number,-15}  -->  0x{Convert.ToString(number, baseValue)}"
// The example displays the following output:
//    Base 2 conversion:
//       -2147483648      -->  0x10000000000000000000000000000000
//       -19327543        -->  0x11111110110110010001010111001001
//       -13621           -->  0x11111111111111111100101011001011
//       -18              -->  0x11111111111111111111111111101110
//       12               -->  0x1100
//       19142            -->  0x100101011000110
//       2147483647       -->  0x1111111111111111111111111111111
//    Base 8 conversion:
//       -2147483648      -->  0x20000000000
//       -19327543        -->  0x37666212711
//       -13621           -->  0x37777745313
//       -18              -->  0x37777777756
//       12               -->  0x14
//       19142            -->  0x45306
//       2147483647       -->  0x17777777777
//    Base 10 conversion:
//       -2147483648      -->  0x-2147483648
//       -19327543        -->  0x-19327543
//       -13621           -->  0x-13621
//       -18              -->  0x-18
//       12               -->  0x12
//       19142            -->  0x19142
//       2147483647       -->  0x2147483647
//    Base 16 conversion:
//       -2147483648      -->  0x80000000
//       -19327543        -->  0xfed915c9
//       -13621           -->  0xffffcacb
//       -18              -->  0xffffffee
//       12               -->  0xc
//       19142            -->  0x4ac6
//       2147483647       -->  0x7fffffff

Dim bases() As Integer = { 2, 8, 10, 16}
Dim numbers() As Integer = { Int32.MinValue, -19327543, -13621, -18, 12, _
                             19142, Int32.MaxValue }

For Each base As Integer In bases
   Console.WriteLine("Base {0} conversion:", base)
   For Each number As Integer In numbers
      Console.WriteLine("   {0,-15}  -->  0x{1}", _
                        number, Convert.ToString(number, base))
   Next
Next
' The example displays the following output:
'    Base 2 conversion:
'       -2147483648      -->  0x10000000000000000000000000000000
'       -19327543        -->  0x11111110110110010001010111001001
'       -13621           -->  0x11111111111111111100101011001011
'       -18              -->  0x11111111111111111111111111101110
'       12               -->  0x1100
'       19142            -->  0x100101011000110
'       2147483647       -->  0x1111111111111111111111111111111
'    Base 8 conversion:
'       -2147483648      -->  0x20000000000
'       -19327543        -->  0x37666212711
'       -13621           -->  0x37777745313
'       -18              -->  0x37777777756
'       12               -->  0x14
'       19142            -->  0x45306
'       2147483647       -->  0x17777777777
'    Base 10 conversion:
'       -2147483648      -->  0x-2147483648
'       -19327543        -->  0x-19327543
'       -13621           -->  0x-13621
'       -18              -->  0x-18
'       12               -->  0x12
'       19142            -->  0x19142
'       2147483647       -->  0x2147483647
'    Base 16 conversion:
'       -2147483648      -->  0x80000000
'       -19327543        -->  0xfed915c9
'       -13621           -->  0xffffcacb
'       -18              -->  0xffffffee
'       12               -->  0xc
'       19142            -->  0x4ac6
'       2147483647       -->  0x7fffffff

let bases = [2; 8; 10; 16]
let numbers = [ Int32.MinValue; -19327543; -13621; -18; 12; 19142; Int32.MaxValue ]

for baseValue in bases do
    printfn "Base %i conversion:" baseValue
    for number in numbers do
        printfn "   % -15i  -->  0x%s" number (Convert.ToString (number, baseValue))
// The example displays the following output:
//     Base 2 conversion:
//        -2147483648      -->  0x10000000000000000000000000000000
//        -19327543        -->  0x11111110110110010001010111001001
//        -13621           -->  0x11111111111111111100101011001011
//        -18              -->  0x11111111111111111111111111101110
//         12              -->  0x1100
//         19142           -->  0x100101011000110
//         2147483647      -->  0x1111111111111111111111111111111
//     Base 8 conversion:
//        -2147483648      -->  0x20000000000
//        -19327543        -->  0x37666212711
//        -13621           -->  0x37777745313
//        -18              -->  0x37777777756
//         12              -->  0x14
//         19142           -->  0x45306
//         2147483647      -->  0x17777777777
//     Base 10 conversion:
//        -2147483648      -->  0x-2147483648
//        -19327543        -->  0x-19327543
//        -13621           -->  0x-13621
//        -18              -->  0x-18
//         12              -->  0x12
//         19142           -->  0x19142
//         2147483647      -->  0x2147483647
//     Base 16 conversion:
//        -2147483648      -->  0x80000000
//        -19327543        -->  0xfed915c9
//        -13621           -->  0xffffcacb
//        -18              -->  0xffffffee
//         12              -->  0xc
//         19142           -->  0x4ac6
//         2147483647      -->  0x7fffffff

Comentarios

Si value es positivo y toBase es 2, 8 o 16, la cadena devuelta usa la representación de signo y magnitud. Si value es negativo y toBase es 2, 8 o 16, la cadena devuelta usa la representación complementaria de dos. Esto significa que el bit de orden superior del byte de orden más alto (bit 31) se interpreta como bit de signo. Si se llama al ToString(Int32, Int32) método para crear una cadena que se convertirá más adelante en un número, se debe llamar a un método correspondiente que supone que se debe llamar a una representación numérica similar para realizar la conversión. Estos métodos incluyen Convert.ToInt32(String, Int32) y Int32.Parse(String, NumberStyles).

ToString(Int16, IFormatProvider)

Source:

Convert.cs

Convierte el valor del entero de 16 bits con signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(short value, IFormatProvider ^ provider);

public static string ToString (short value, IFormatProvider? provider);

static member ToString : int16 * IFormatProvider -> string

Public Shared Function ToString (value As Short, provider As IFormatProvider) As String

Parámetros

value

Int16

Entero de 16 bits con signo que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se define una clase personalizada NumberFormatInfo que define su signo negativo como la cadena "~" y su signo positivo como la cadena "!". A continuación, llama al ToString(Int16, IFormatProvider) método para convertir cada elemento de una matriz de enteros de 16 bits en su representación de cadena equivalente. La conversión usa la referencia cultural invariable, así como el objeto personalizado NumberFormatInfo .

short[] numbers = { Int16.MinValue, Int16.MaxValue};
System.Globalization.NumberFormatInfo nfi = new System.Globalization.NumberFormatInfo();
nfi.NegativeSign = "~";
nfi.PositiveSign = "!";

foreach (short number in numbers)
   Console.WriteLine("{0,-8}  -->  {1,8}",
                     Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture),
                     Convert.ToString(number, nfi));
// The example displays the following output:
//       -32768    -->    ~32768
//       32767     -->     32767

let numbers = [| Int16.MinValue; Int16.MaxValue |]
let nfi = NumberFormatInfo()
nfi.NegativeSign <- "~"
nfi.PositiveSign <- "!"

for number in numbers do
    printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture),-8}  -->  {Convert.ToString(number, nfi),8}"
// The example displays the following output:
//       -32768    -->    ~32768
//       32767     -->     32767

Dim numbers() As Short = { Int16.MinValue, Int16.MaxValue}
Dim nfi As New System.Globalization.NumberFormatInfo()
nfi.NegativeSign = "~"
nfi.PositiveSign = "!"

For Each number As Short In numbers
   Console.WriteLine("{0,-8}  -->  {1,8}", _
                     Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture), _
                     Convert.ToString(number, nfi))
Next
' The example displays the following output:
'       -32768    -->    ~32768
'       32767     -->     32767

Comentarios

Esta implementación es idéntica a Int16.ToString(IFormatProvider).

ToString(Int64, IFormatProvider)

Source:

Convert.cs

Convierte el valor del entero de 64 bits con signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(long value, IFormatProvider ^ provider);

public static string ToString (long value, IFormatProvider? provider);

static member ToString : int64 * IFormatProvider -> string

Public Shared Function ToString (value As Long, provider As IFormatProvider) As String

Parámetros

value

Int64

Entero de 64 bits con signo que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se define una clase personalizada NumberFormatInfo que define su signo negativo como la cadena "~" y su signo positivo como la cadena "!". A continuación, llama al ToString(Int64, IFormatProvider) método para convertir cada elemento de una matriz de enteros largo en su representación de cadena equivalente. La conversión usa la referencia cultural invariable, así como el objeto personalizado NumberFormatInfo .

long[] numbers = { ((long) Int32.MinValue) * 2, ((long) Int32.MaxValue) * 2};
System.Globalization.NumberFormatInfo nfi = new System.Globalization.NumberFormatInfo();
nfi.NegativeSign = "~";
nfi.PositiveSign = "!";

foreach (long number in numbers)
   Console.WriteLine("{0,-12}  -->  {1,12}",
                     Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture),
                     Convert.ToString(number, nfi));
// The example displays the following output:
//       -4294967296  -->  ~4294967296
//       4294967294  -->  4294967294

let numbers = [| (int64 Int32.MinValue) * 2L; (int64 Int32.MaxValue) * 2L |]
let nfi = NumberFormatInfo()
nfi.NegativeSign <- "~"
nfi.PositiveSign <- "!"

for number in numbers do
    printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture),-12}  -->  {Convert.ToString(number, nfi),12}"
// The example displays the following output:
//       -4294967296  -->  ~4294967296
//       4294967294  -->  4294967294

Dim numbers() As Long = { CLng(Int32.MinValue) * 2, CLng(Int32.MaxValue) * 2 }
Dim nfi As New System.Globalization.NumberFormatInfo()
nfi.NegativeSign = "~"
nfi.PositiveSign = "!"

For Each number As Long In numbers
   Console.WriteLine("{0,-12}  -->  {1,12}", _
                     Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture), _
                     Convert.ToString(number, nfi))
Next
' The example displays the following output:
'       -4294967296  -->  ~4294967296
'       4294967294   -->  4294967294

Comentarios

Esta implementación es idéntica a Int64.ToString(IFormatProvider).

ToString(Single, IFormatProvider)

Source:

Convert.cs

Convierte el valor del número de punto flotante de precisión sencilla especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(float value, IFormatProvider ^ provider);

public static string ToString (float value, IFormatProvider? provider);

static member ToString : single * IFormatProvider -> string

Public Shared Function ToString (value As Single, provider As IFormatProvider) As String

Parámetros

value

Single

Número de punto flotante de precisión sencilla que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de Single valores en su representación de cadena equivalente en cuatro referencias culturales diferentes.

// Define an array of numbers to display.
float[] numbers = { -1.5345e16f, -123.4321f, 19092.123f, 1.1734231911290e16f };
// Define the culture names used to display them.
string[] cultureNames = { "en-US", "fr-FR", "ja-JP", "ru-RU" };

foreach (float number in numbers)
{
   Console.WriteLine("{0}:", Convert.ToString(number,
                             System.Globalization.CultureInfo.InvariantCulture));
   foreach (string cultureName in cultureNames)
   {
      System.Globalization.CultureInfo culture = new System.Globalization.CultureInfo(cultureName);
      Console.WriteLine("   {0}: {1,20}",
                        culture.Name, Convert.ToString(number, culture));
   }
   Console.WriteLine();
}
// The example displays the following output:
//    -1.5345E+16:
//       en-US:          -1.5345E+16
//       fr-FR:          -1,5345E+16
//       ja-JP:          -1.5345E+16
//       ru-RU:          -1,5345E+16
//
//    -123.4321:
//       en-US:            -123.4321
//       fr-FR:            -123,4321
//       ja-JP:            -123.4321
//       ru-RU:            -123,4321
//
//    19092.123:
//       en-US:            19092.123
//       fr-FR:            19092,123
//       ja-JP:            19092.123
//       ru-RU:            19092,123
//
//    1.173423191129E+16:
//       en-US:   1.173423191129E+16
//       fr-FR:   1,173423191129E+16
//       ja-JP:   1.173423191129E+16
//       ru-RU:   1,173423191129E+16

// Define an array of numbers to display.
let numbers = [| -1.5345e16f; -123.4321f; 19092.123f; 1.1734231911290e16f |]
// Define the culture names used to display them.
let cultureNames = [| "en-US"; "fr-FR"; "ja-JP"; "ru-RU" |]

for number in numbers do
    printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture)}:"
    for cultureName in cultureNames do
        let culture = CultureInfo cultureName
        printfn $"   {culture.Name}: {Convert.ToString(number, culture),20}"
    printfn ""
// The example displays the following output:
//    -1.5345E+16:
//       en-US:          -1.5345E+16
//       fr-FR:          -1,5345E+16
//       ja-JP:          -1.5345E+16
//       ru-RU:          -1,5345E+16
//
//    -123.4321:
//       en-US:            -123.4321
//       fr-FR:            -123,4321
//       ja-JP:            -123.4321
//       ru-RU:            -123,4321
//
//    19092.123:
//       en-US:            19092.123
//       fr-FR:            19092,123
//       ja-JP:            19092.123
//       ru-RU:            19092,123
//
//    1.173423191129E+16:
//       en-US:   1.173423191129E+16
//       fr-FR:   1,173423191129E+16
//       ja-JP:   1.173423191129E+16
//       ru-RU:   1,173423191129E+16

' Define an array of numbers to display.
Dim numbers() As Single = { -1.5345e16, -123.4321, 19092.123, _
                            1.1734231911290e16 }
' Define the culture names used to display them.
Dim cultureNames() As String = { "en-US", "fr-FR", "ja-JP", "ru-RU" }

For Each number As Single In numbers
   Console.WriteLine("{0}:", Convert.ToString(number, _
                             System.Globalization.CultureInfo.InvariantCulture))
   For Each cultureName As String In cultureNames
      Dim culture As New System.Globalization.CultureInfo(cultureName)
      Console.WriteLine("   {0}: {1,20}", _
                        culture.Name, Convert.ToString(number, culture))
   Next
   Console.WriteLine()
Next   
' The example displays the following output:
'    -1.5345E+16:
'       en-US:          -1.5345E+16
'       fr-FR:          -1,5345E+16
'       ja-JP:          -1.5345E+16
'       ru-RU:          -1,5345E+16
'    
'    -123.4321:
'       en-US:            -123.4321
'       fr-FR:            -123,4321
'       ja-JP:            -123.4321
'       ru-RU:            -123,4321
'    
'    19092.123:
'       en-US:            19092.123
'       fr-FR:            19092,123
'       ja-JP:            19092.123
'       ru-RU:            19092,123
'    
'    1.173423191129E+16:
'       en-US:   1.173423191129E+16
'       fr-FR:   1,173423191129E+16
'       ja-JP:   1.173423191129E+16
'       ru-RU:   1,173423191129E+16

Comentarios

Esta implementación es idéntica a Single.ToString(IFormatProvider).

ToString(Object, IFormatProvider)

Source:

Convert.cs

Convierte el valor del objeto especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(System::Object ^ value, IFormatProvider ^ provider);

public static string? ToString (object? value, IFormatProvider? provider);

static member ToString : obj * IFormatProvider -> string

Public Shared Function ToString (value As Object, provider As IFormatProvider) As String

Parámetros

value

Object

Objeto que proporciona el valor que se va a convertir, o null.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

La representación de cadena de value, o Empty si value es un objeto cuyo valor es null. Si el valor de value es null, el método devuelve null.

Ejemplos

En el ejemplo siguiente se define una Temperature clase que invalida el Object.ToString método pero no implementa la IConvertible interfaz . En el ejemplo se muestra cómo las llamadas al Convert.ToString(Object, IFormatProvider) método, a su vez, llaman al Temperature.ToString método .

using System;

public class Temperature
{
   private decimal m_Temp;

   public Temperature(decimal temperature)
   {
      this.m_Temp = temperature;
   }

   public decimal Celsius
   {
      get { return this.m_Temp; }
   }

   public decimal Kelvin
   {
      get { return this.m_Temp + 273.15m; }
   }

   public decimal Fahrenheit
   {
      get { return Math.Round((decimal) (this.m_Temp * 9 / 5 + 32), 2); }
   }

   public override string ToString()
   {
      return m_Temp.ToString("N2") + " °C";
   }
}

public class Example
{
   public static void Main()
   {
      Temperature cold = new Temperature(-40);
      Temperature freezing = new Temperature(0);
      Temperature boiling = new Temperature(100);

      Console.WriteLine(Convert.ToString(cold, null));
      Console.WriteLine(Convert.ToString(freezing, null));
      Console.WriteLine(Convert.ToString(boiling, null));
   }
}
// The example dosplays the following output:
//       -40.00 °C
//       0.00 °C
//       100.00 °C

open System

type Temperature(temperature: decimal) =
    member _.Celsius =
        temperature

    member _.Kelvin =
        temperature + 273.15m

    member _.Fahrenheit =
        Math.Round(temperature * 9m / 5m + 32m |> decimal, 2)

    override _.ToString() =
        temperature.ToString("N2") + " °C"

let cold = Temperature -40
let freezing = Temperature 0
let boiling = Temperature 100

printfn $"{Convert.ToString(cold, null)}"
printfn $"{Convert.ToString(freezing, null)}"
printfn $"{Convert.ToString(boiling, null)}"
// The example dosplays the following output:
//       -40.00 °C
//       0.00 °C
//       100.00 °C

Public Class Temperature 
   Private m_Temp As Decimal

   Public Sub New(temperature As Decimal)
      Me.m_Temp = temperature
   End Sub
   
   Public ReadOnly Property Celsius() As Decimal
      Get
         Return Me.m_Temp
      End Get   
   End Property
   
   Public ReadOnly Property Kelvin() As Decimal
      Get
         Return Me.m_Temp + 273.15d   
      End Get
   End Property
   
   Public ReadOnly Property Fahrenheit() As Decimal
      Get
         Return Math.Round(CDec(Me.m_Temp * 9 / 5 + 32), 2)
      End Get      
   End Property
   
   Public Overrides Function ToString() As String
      Return m_Temp.ToString("N2") & " °C"
   End Function
End Class

Module Example
   Public Sub Main()
      Dim cold As New Temperature(-40)
      Dim freezing As New Temperature(0)
      Dim boiling As New Temperature(100)
      
      Console.WriteLine(Convert.ToString(cold, Nothing))
      Console.WriteLine(Convert.ToString(freezing, Nothing))
      Console.WriteLine(Convert.ToString(boiling, Nothing))
   End Sub
End Module
' The example displays the following output:
'       -40.00 °C
'       0.00 °C
'       100.00 °C

En el ejemplo siguiente se define una Temperature clase que implementa la IFormattable interfaz, pero que no implementa la IConvertible interfaz . Su IFormattable.ToString implementación representa el Temperature valor en Celsius, Fahrenheit o Kelvin, dependiendo de la cadena de formato. En el ejemplo también se define una TemperatureProvider clase que implementa IFormatProvider y proporciona una cadena de formato generada aleatoriamente que se usa en la IFormattable implementación de la Temperature clase .

using System;

public class Temperature : IFormattable
{
   private decimal m_Temp;

   public Temperature(decimal temperature)
   {
      this.m_Temp = temperature;
   }

   public decimal Celsius
   { get { return this.m_Temp; } }

   public decimal Kelvin
   { get { return this.m_Temp + 273.15m; } }

   public decimal Fahrenheit
   {  get { return Math.Round(this.m_Temp * 9m / 5m + 32m, 2); } }

   public override String ToString()
   {
      return ToString("G", null);
   }

   public String ToString(String fmt, IFormatProvider provider)
   {
      TemperatureProvider formatter = null;
      if (provider != null)
         formatter = provider.GetFormat(typeof(TemperatureProvider))
                                       as TemperatureProvider;

      if (String.IsNullOrWhiteSpace(fmt)) {
         if (formatter != null)
            fmt = formatter.Format;
         else
            fmt = "G";
      }

      switch (fmt.ToUpper()) {
         case "G":
         case "C":
            return m_Temp.ToString("N2") + " °C";
         case "F":
            return Fahrenheit.ToString("N2") + " °F";
         case "K":
            return Kelvin.ToString("N2") + " K";
         default:
            throw new FormatException(String.Format("'{0}' is not a valid format specifier.", fmt));
      }
   }
}

public class TemperatureProvider : IFormatProvider
{
   private String[] fmtStrings = { "C", "G", "F", "K" };
   private Random rnd = new Random();

   public Object GetFormat(Type formatType)
   {
      return this;
   }

   public String Format
   { get { return fmtStrings[rnd.Next(0, fmtStrings.Length)]; } }
}

public class Example
{
   public static void Main()
   {
      Temperature cold = new Temperature (-40);
      Temperature freezing = new Temperature (0);
      Temperature boiling = new Temperature (100);

      TemperatureProvider tp = new TemperatureProvider();

      Console.WriteLine(Convert.ToString(cold, tp));
      Console.WriteLine(Convert.ToString(freezing, tp));
      Console.WriteLine(Convert.ToString(boiling, tp));
   }
}
// The example displays output like the following:
//       -40.00 °C
//       273.15 K
//       100.00 °C

open System

[<AllowNullLiteral>]
type TemperatureProvider() =
    let fmtStrings = [| "C"; "G"; "F"; "K" |]
    let rnd = Random()

    member _.Format =
        fmtStrings[rnd.Next(0, fmtStrings.Length)]

    interface IFormatProvider with
        member this.GetFormat(formatType: Type) =
            this

type Temperature(temperature: decimal) =
    member _.Celsius =
        temperature
    member _.Kelvin =
        temperature + 273.15m

    member _.Fahrenheit =
        Math.Round(temperature * 9m / 5m + 32m, 2)

    override this.ToString() =
        this.ToString("G", null)

    member this.ToString(fmt: string, provider: IFormatProvider) =
        let formatter =
            match provider with
            | null -> null
            | _ ->
                match provider.GetFormat typeof<TemperatureProvider> with
                | :? TemperatureProvider as x -> x
                | _ -> null 

        let fmt = 
            if String.IsNullOrWhiteSpace fmt then
                if formatter <> null then
                    formatter.Format
                else
                    "G"
            else fmt

        match fmt.ToUpper() with
        | "G"
        | "C" ->
            $"{temperature:N2} °C"
        | "F" ->
            $"{this.Fahrenheit:N2}  °F"
        | "K" ->
            $"{this.Kelvin:N2} K"
        | _ ->
            raise (FormatException $"'{fmt}' is not a valid format specifier.")

let cold = Temperature -40
let freezing = Temperature 0
let boiling = Temperature 100

let tp = TemperatureProvider()

printfn $"{Convert.ToString(cold, tp)}"
printfn $"{Convert.ToString(freezing, tp)}"
printfn $"{Convert.ToString(boiling, tp)}"
// The example displays output like the following:
//       -40.00 °C
//       273.15 K
//       100.00 °C

Public Class Temperature : Implements IFormattable 
   Private m_Temp As Decimal 

   Public Sub New(temperature As Decimal)
      Me.m_Temp = temperature
   End Sub 

   Public ReadOnly Property Celsius As Decimal 
      Get 
         Return Me.m_Temp
      End Get    
   End Property 

   Public ReadOnly Property Kelvin As Decimal 
      Get 
         Return Me.m_Temp + 273.15d   
      End Get 
   End Property 

   Public ReadOnly Property Fahrenheit As Decimal 
      Get 
         Return Math.Round(CDec(Me.m_Temp * 9 / 5 + 32), 2)
      End Get       
   End Property 

   Public Overrides Function ToString() As String 
      Return ToString("G", Nothing) 
   End Function 
   
   Public Overloads Function ToString(fmt As String, 
                                      provider As IFormatProvider) As String _
                             Implements IFormattable.ToString
      Dim formatter As TemperatureProvider = Nothing
      If provider IsNot Nothing Then formatter = TryCast(provider.GetFormat(GetType(TemperatureProvider)),
                                                         TemperatureProvider)

      If String.IsNullOrWhiteSpace(fmt) Then
         If formatter IsNot Nothing Then
            fmt = formatter.Format
         Else
            fmt = "G"
         End If
      End If

      Select Case fmt.ToUpper()
         Case "G", "C"
            Return m_Temp.ToString("N2") & " °C" 
         Case "F"
            Return Fahrenheit.ToString("N2") + " °F"
         Case "K"
            Return Kelvin.ToString("N2") + " K"
         Case Else
            Throw New FormatException(String.Format("'{0}' is not a valid format specifier.", fmt))
      End Select
   End Function                             
End Class 

Public Class TemperatureProvider : Implements IFormatProvider
   Private fmtStrings() As String = { "C", "G", "F", "K" }
   Private rnd As New Random()
   
   Public Function GetFormat(formatType As Type) As Object _
                   Implements IFormatProvider.GetFormat 
      Return Me 
   End Function
   
   Public ReadOnly Property Format As String
      Get
         Return fmtStrings(rnd.Next(0, fmtStrings.Length))
      End Get
   End Property
End Class

Module Example
   Public Sub Main()
      Dim cold As New Temperature(-40)
      Dim freezing As New Temperature(0)
      Dim boiling As New Temperature(100)

      Dim tp As New TemperatureProvider()
      
      Console.WriteLine(Convert.ToString(cold, tp))
      Console.WriteLine(Convert.ToString(freezing, tp))
      Console.WriteLine(Convert.ToString(boiling, tp))
   End Sub 
End Module 
' The example displays output like the following:
'       -40.00 °C
'       273.15 K
'       100.00 °C

Comentarios

Si el value parámetro implementa la IConvertible interfaz , el método llama a la IConvertible.ToString(IFormatProvider) implementación de value. De lo contrario, si el value parámetro implementa la IFormattable interfaz , el método llama a su IFormattable.ToString(String, IFormatProvider) implementación. Si value no implementa ninguna interfaz, el método llama al value método del ToString() parámetro y se omite el provider parámetro .

El provider parámetro se usa si el value parámetro implementa la IConvertible interfaz o IFormattable . El uso más común del provider parámetro es especificar información específica de la referencia cultural utilizada en la conversión de value. Por ejemplo, si el value parámetro es un número decimal negativo, el provider parámetro puede proporcionar información específica de la referencia cultural sobre la notación utilizada para el signo negativo y el separador decimal. En el segundo ejemplo de la sección siguiente se muestra un proveedor de formato que no proporciona información de formato confidencial a la referencia cultural.

ToString(SByte, IFormatProvider)

Source:

Convert.cs

Importante

Esta API no es conforme a CLS.

Convierte el valor del entero de 8 bits con signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(System::SByte value, IFormatProvider ^ provider);

[System.CLSCompliant(false)]
public static string ToString (sbyte value, IFormatProvider? provider);

[<System.CLSCompliant(false)>]
static member ToString : sbyte * IFormatProvider -> string

Public Shared Function ToString (value As SByte, provider As IFormatProvider) As String

Parámetros

value

SByte

Entero de 8 bits con signo que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Atributos

CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se define una clase personalizada NumberFormatInfo que define su signo negativo como la cadena "~" y su signo positivo como la cadena "!". A continuación, llama al Convert.ToString(SByte, IFormatProvider) método para convertir cada elemento de la matriz de bytes con signo en su representación de cadena equivalente. La conversión usa la referencia cultural invariable, así como el objeto personalizado NumberFormatInfo .

sbyte[] numbers = { SByte.MinValue, -12, 17, SByte.MaxValue};
System.Globalization.NumberFormatInfo nfi = new System.Globalization.NumberFormatInfo();
nfi.NegativeSign = "~";
nfi.PositiveSign = "!";
foreach (sbyte number in numbers)
   Console.WriteLine(Convert.ToString(number, nfi));
// The example displays the following output:
//       ~128
//       ~12
//       17
//       127

let numbers = [| SByte.MinValue; -12y; 17y; SByte.MaxValue |]
let nfi = NumberFormatInfo()
nfi.NegativeSign <- "~"
nfi.PositiveSign <- "!"
for number in numbers do
    printfn $"{Convert.ToString(number, nfi)}"
// The example displays the following output:
//       ~128
//       ~12
//       17
//       127

Dim numbers() As SByte = { SByte.MinValue, -12, 17, SByte.MaxValue}
Dim nfi As New System.Globalization.NumberFormatInfo()
nfi.NegativeSign = "~"
nfi.PositiveSign = "!"
For Each number As SByte In numbers
   Console.WriteLine(Convert.ToString(number, nfi))
Next
' The example displays the following output:
'       ~128
'       ~12
'       17
'       127

Comentarios

Esta implementación es idéntica a SByte.ToString(IFormatProvider).

ToString(String, IFormatProvider)

Source:

Convert.cs

Devuelve la instancia de la cadena especificada; no se efectúa una conversión real.

public:
 static System::String ^ ToString(System::String ^ value, IFormatProvider ^ provider);

public static string? ToString (string? value, IFormatProvider? provider);

static member ToString : string * IFormatProvider -> string

Public Shared Function ToString (value As String, provider As IFormatProvider) As String

Parámetros

value

String

Cadena que se va a devolver.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural. Este parámetro se ignora.

Devoluciones

String

value se devuelve sin cambios.

Ejemplos

En el ejemplo siguiente se llama al ToString método con un String parámetro . El método devuelve el no modificado String sin hacer referencia al IFormatProvider objeto .

// Example of Convert::ToString( non-numeric types, IFormatProvider ).
using namespace System;
using namespace System::Globalization;

#define null (Object^)0

// An instance of this class can be passed to methods that require 
// an IFormatProvider.
ref class DummyProvider: public IFormatProvider
{
public:

   // Normally, GetFormat returns an object of the requested type
   // (usually itself) if it is able; otherwise, it returns Nothing. 
   virtual Object^ GetFormat( Type^ argType )
   {
      // Here, the type of argType is displayed, and GetFormat
      // always returns Nothing.
      Console::Write( "{0,-40}", argType->ToString() );
      return null;
   }
};

int main()
{
   // Create an instance of the IFormatProvider.
   DummyProvider^ provider = gcnew DummyProvider;
   String^ converted;

   // Convert these values using DummyProvider.
   int Int32A = -252645135;
   double DoubleA = 61680.3855;
   Object^ ObjDouble =  -98765.4321;
   DateTime DayTimeA = DateTime(2001,9,11,13,45,0);
   bool BoolA = true;
   String^ StringA = "Qwerty";
   Char CharA = '$';
   TimeSpan TSpanA = TimeSpan(0,18,0);
   Object^ ObjOther = static_cast<Object^>(provider);
   Console::WriteLine( "This example of "
   "Convert::ToString( non-numeric, IFormatProvider* ) \n"
   "generates the following output. The provider type, "
   "argument type, \nand argument value are displayed." );
   Console::WriteLine( "\nNote: The IFormatProvider object is "
   "not called for Boolean, String, \nChar, TimeSpan, "
   "and non-numeric Object." );

   // The format provider is called for these conversions.
   Console::WriteLine();
   converted = Convert::ToString( Int32A, provider );
   Console::WriteLine( "int      {0}", converted );
   converted = Convert::ToString( DoubleA, provider );
   Console::WriteLine( "double   {0}", converted );
   converted = Convert::ToString( ObjDouble, provider );
   Console::WriteLine( "Object   {0}", converted );
   converted = Convert::ToString( DayTimeA, provider );
   Console::WriteLine( "DateTime {0}", converted );

   // The format provider is not called for these conversions.
   Console::WriteLine();
   converted = Convert::ToString( BoolA, provider );
   Console::WriteLine( "bool     {0}", converted );
   converted = Convert::ToString( StringA, provider );
   Console::WriteLine( "String   {0}", converted );
   converted = Convert::ToString( CharA, provider );
   Console::WriteLine( "Char     {0}", converted );
   converted = Convert::ToString( TSpanA, provider );
   Console::WriteLine( "TimeSpan {0}", converted );
   converted = Convert::ToString( ObjOther, provider );
   Console::WriteLine( "Object   {0}", converted );
}

/*
This example of Convert::ToString( non-numeric, IFormatProvider* )
generates the following output. The provider type, argument type,
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String,
Char, TimeSpan, and non-numeric Object.

System.Globalization.NumberFormatInfo   int      -252645135
System.Globalization.NumberFormatInfo   double   61680.3855
System.Globalization.NumberFormatInfo   Object   -98765.4321
System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM

bool     True
String   Qwerty
Char     $
TimeSpan 00:18:00
Object   DummyProvider
*/

// Example of Convert.ToString( non-numeric types, IFormatProvider ).
using System;
using System.Globalization;

// An instance of this class can be passed to methods that require
// an IFormatProvider.
public class DummyProvider : IFormatProvider
{
    // Normally, GetFormat returns an object of the requested type
    // (usually itself) if it is able; otherwise, it returns Nothing.
    public object GetFormat( Type argType )
    {
        // Here, the type of argType is displayed, and GetFormat
        // always returns Nothing.
        Console.Write( "{0,-40}", argType.ToString( ) );
        return null;
    }
}

class ConvertNonNumericProviderDemo
{
    static void Main( )
    {
        // Create an instance of the IFormatProvider.
        DummyProvider provider = new DummyProvider( );
        string converted;

        // Convert these values using DummyProvider.
        int      Int32A     = -252645135;
        double   DoubleA    = 61680.3855;
        object   ObjDouble  = (object)( -98765.4321 );
        DateTime DayTimeA   = new DateTime( 2001, 9, 11, 13, 45, 0 );

        bool     BoolA      = true;
        string   StringA    = "Qwerty";
        char     CharA      = '$';
        TimeSpan TSpanA     = new TimeSpan( 0, 18, 0 );
        object   ObjOther   = (object)provider;

        Console.WriteLine( "This example of " +
            "Convert.ToString( non-numeric, IFormatProvider ) \n" +
            "generates the following output. The provider type, " +
            "argument type, \nand argument value are displayed." );
        Console.WriteLine( "\nNote: The IFormatProvider object is " +
            "not called for Boolean, String, \nChar, TimeSpan, " +
            "and non-numeric Object." );

        // The format provider is called for these conversions.
        Console.WriteLine( );
        converted = Convert.ToString( Int32A, provider );
        Console.WriteLine( "int      {0}", converted );
        converted = Convert.ToString( DoubleA, provider );
        Console.WriteLine( "double   {0}", converted );
        converted = Convert.ToString( ObjDouble, provider );
        Console.WriteLine( "object   {0}", converted );
        converted = Convert.ToString( DayTimeA, provider );
        Console.WriteLine( "DateTime {0}", converted );

        // The format provider is not called for these conversions.
        Console.WriteLine( );
        converted = Convert.ToString( BoolA, provider );
        Console.WriteLine( "bool     {0}", converted );
        converted = Convert.ToString( StringA, provider );
        Console.WriteLine( "string   {0}", converted );
        converted = Convert.ToString( CharA, provider );
        Console.WriteLine( "char     {0}", converted );
        converted = Convert.ToString( TSpanA, provider );
        Console.WriteLine( "TimeSpan {0}", converted );
        converted = Convert.ToString( ObjOther, provider );
        Console.WriteLine( "object   {0}", converted );
    }
}

/*
This example of Convert.ToString( non-numeric, IFormatProvider )
generates the following output. The provider type, argument type,
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String,
Char, TimeSpan, and non-numeric Object.

System.Globalization.NumberFormatInfo   int      -252645135
System.Globalization.NumberFormatInfo   double   61680.3855
System.Globalization.NumberFormatInfo   object   -98765.4321
System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM

bool     True
string   Qwerty
char     $
TimeSpan 00:18:00
object   DummyProvider

*/

// Example of Convert.ToString(non-numeric types, IFormatProvider).
open System
open System.Globalization

// Create an instance of the IFormatProvider with an object expression.
let provider =
    { new IFormatProvider with
        // Normally, GetFormat returns an object of the requested type
        // (usually itself) if it is able; otherwise, it returns Nothing.
        member _.GetFormat(argType: Type) =
            // Here, the type of argType is displayed, and GetFormat
            // always returns Nothing.
            printf $"{argType,-40}"
            null 
    }

// Convert these values using DummyProvider.
let Int32A     = -252645135
let DoubleA    = 61680.3855
let ObjDouble  = -98765.4321 :> obj
let DayTimeA   = DateTime(2001, 9, 11, 13, 45, 0)

let BoolA      = true
let StringA    = "Qwerty"
let CharA      = '$'
let TSpanA     = TimeSpan(0, 18, 0)
let ObjOther   = provider :> obj

[<EntryPoint>]
let main _ =
    printfn
        """This example of Convert.ToString(non-numeric, IFormatProvider) 
generates the following output. The provider type, argument type, 
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String, 
Char, TimeSpan, and non-numeric Object."""

    // The format provider is called for these conversions.
    printfn ""
    let converted = Convert.ToString(Int32A, provider)
    printfn $"int      {converted}"
    let converted = Convert.ToString(DoubleA, provider)
    printfn $"double   {converted}"
    let converted = Convert.ToString(ObjDouble, provider)
    printfn $"object   {converted}"
    let converted = Convert.ToString(DayTimeA, provider)
    printfn $"DateTime {converted}"

    // The format provider is not called for these conversions.
    printfn ""
    let converted = Convert.ToString(BoolA, provider)
    printfn $"bool     {converted}"
    let converted = Convert.ToString(StringA, provider)
    printfn $"string   {converted}"
    let converted = Convert.ToString(CharA, provider)
    printfn $"char     {converted}"
    let converted = Convert.ToString(TSpanA, provider)
    printfn $"TimeSpan {converted}"
    let converted = Convert.ToString(ObjOther, provider)
    printfn $"object   {converted}"

    0

// This example of Convert.ToString(non-numeric, IFormatProvider)
// generates the following output. The provider type, argument type,
// and argument value are displayed.
//
// Note: The IFormatProvider object is not called for Boolean, String,
// Char, TimeSpan, and non-numeric Object.
//
// System.Globalization.NumberFormatInfo   int      -252645135
// System.Globalization.NumberFormatInfo   double   61680.3855
// System.Globalization.NumberFormatInfo   object   -98765.4321
// System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM
//
// bool     True
// string   Qwerty
// char     $
// TimeSpan 00:18:00
// object   DummyProvider

' Example of Convert.ToString( non-numeric types, IFormatProvider ).
Imports System.Globalization

' An instance of this class can be passed to methods that require 
' an IFormatProvider.
Public Class DummyProvider
    Implements IFormatProvider

    ' Normally, GetFormat returns an object of the requested type
    ' (usually itself) if it is able; otherwise, it returns Nothing. 
    Public Function GetFormat( argType As Type ) As Object _
        Implements IFormatProvider.GetFormat

        ' Here, the type of argType is displayed, and GetFormat
        ' always returns Nothing.
        Console.Write( "{0,-40}", argType.ToString( ) )
        Return Nothing

    End Function 
End Class

Module ConvertNonNumericProviderDemo

    Sub Main( )

        ' Create an instance of the IFormatProvider.
        Dim provider    As New DummyProvider( )
        Dim converted   As String

        ' Convert these values using DummyProvider.
        Dim Int32A      As Integer  = -252645135   
        Dim DoubleA     As Double   = 61680.3855
        Dim ObjDouble   As Object   = CType( -98765.4321, Object )
        Dim DayTimeA    As DateTime = _
                            new DateTime( 2001, 9, 11, 13, 45, 0 )

        Dim BoolA       As Boolean  = True
        Dim StringA     As String   = "Qwerty"
        Dim CharA       As Char     = "$"c
        Dim TSpanA      As TimeSpan = New TimeSpan( 0, 18, 0 )
        Dim ObjOther    As Object   = CType( provider, Object )

        Console.WriteLine( "This example of " & _
            "Convert.ToString( non-numeric, IFormatProvider ) " & _
            vbCrLf & "generates the following output. The " & _
            "provider type, argument type, " & vbCrLf & "and " & _
            "argument value are displayed." )
        Console.WriteLine( vbCrLf & _
            "Note: The IFormatProvider object is not called for " & _
            "Boolean, String, " & vbCrLf & "Char, TimeSpan, " & _
            "and non-numeric Object." )

        ' The format provider is called for these conversions.
        Console.WriteLine( )
        converted =  Convert.ToString( Int32A, provider )
        Console.WriteLine( "Int32    {0}", converted )
        converted =  Convert.ToString( DoubleA, provider )
        Console.WriteLine( "Double   {0}", converted )
        converted =  Convert.ToString( ObjDouble, provider )
        Console.WriteLine( "Object   {0}", converted )
        converted =  Convert.ToString( DayTimeA, provider )
        Console.WriteLine( "DateTime {0}", converted )

        ' The format provider is not called for these conversions.
        Console.WriteLine( )
        converted =  Convert.ToString( BoolA, provider )
        Console.WriteLine( "Boolean  {0}", converted )
        converted =  Convert.ToString( StringA, provider )
        Console.WriteLine( "String   {0}", converted )
        converted =  Convert.ToString( CharA, provider )
        Console.WriteLine( "Char     {0}", converted )
        converted =  Convert.ToString( TSpanA, provider )
        Console.WriteLine( "TimeSpan {0}", converted )
        converted =  Convert.ToString( ObjOther, provider )
        Console.WriteLine( "Object   {0}", converted )

    End Sub
End Module

' This example of Convert.ToString( non-numeric, IFormatProvider )
' generates the following output. The provider type, argument type,
' and argument value are displayed.
'
' Note: The IFormatProvider object is not called for Boolean, String,
' Char, TimeSpan, and non-numeric Object.
' 
' System.Globalization.NumberFormatInfo   Int32    -252645135
' System.Globalization.NumberFormatInfo   Double   61680.3855
' System.Globalization.NumberFormatInfo   Object   -98765.4321
' System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM
' 
' Boolean  True
' String   Qwerty
' Char     $
' TimeSpan 00:18:00
' Object   DummyProvider

ToString(UInt16, IFormatProvider)

Source:

Convert.cs

Importante

Esta API no es conforme a CLS.

Convierte el valor del entero de 16 bits sin signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(System::UInt16 value, IFormatProvider ^ provider);

[System.CLSCompliant(false)]
public static string ToString (ushort value, IFormatProvider? provider);

[<System.CLSCompliant(false)>]
static member ToString : uint16 * IFormatProvider -> string

Public Shared Function ToString (value As UShort, provider As IFormatProvider) As String

Parámetros

value

UInt16

Entero de 16 bits sin signo que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Atributos

CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se define una clase personalizada NumberFormatInfo que define su signo negativo como la cadena "~" y su signo positivo como la cadena "!". A continuación, llama al ToString(UInt16, IFormatProvider) método para convertir un valor entero de 16 bits sin signo en su representación de cadena equivalente. La conversión usa la referencia cultural invariable y el objeto personalizado NumberFormatInfo . La salida indica que no se usa esta información de formato, porque de forma predeterminada el especificador de formato "G" no incluye un signo positivo con valores positivos.

ushort number = UInt16.MaxValue;
System.Globalization.NumberFormatInfo nfi = new System.Globalization.NumberFormatInfo();
nfi.NegativeSign = "~";
nfi.PositiveSign = "!";

Console.WriteLine("{0,-6}  -->  {1,6}",
                  Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture),
                  Convert.ToString(number, nfi));
// The example displays the following output:
//       65535   -->   65535

let number = UInt16.MaxValue
let nfi = NumberFormatInfo()
nfi.NegativeSign <- "~"
nfi.PositiveSign <- "!"

printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture),-6}  -->  {Convert.ToString(number, nfi),6}"
// The example displays the following output:
//       65535   -->   65535

Dim number As UShort = UInt16.MaxValue
Dim nfi As New System.Globalization.NumberFormatInfo()
nfi.NegativeSign = "~"
nfi.PositiveSign = "!"

Console.WriteLine("{0,-6}  -->  {1,6}", _
                  Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture), _
                  Convert.ToString(number, nfi))
' The example displays the following output:
'       65535   -->   65535

Comentarios

Esta implementación es idéntica a UInt16.ToString(IFormatProvider).

ToString(UInt32, IFormatProvider)

Source:

Convert.cs

Importante

Esta API no es conforme a CLS.

Convierte el valor del entero de 32 bits sin signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(System::UInt32 value, IFormatProvider ^ provider);

[System.CLSCompliant(false)]
public static string ToString (uint value, IFormatProvider? provider);

[<System.CLSCompliant(false)>]
static member ToString : uint32 * IFormatProvider -> string

Public Shared Function ToString (value As UInteger, provider As IFormatProvider) As String

Parámetros

value

UInt32

Entero de 32 bits sin signo que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Atributos

CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se define una clase personalizada NumberFormatInfo que define su signo negativo como la cadena "~" y su signo positivo como la cadena "!". A continuación, llama al ToString(UInt32, IFormatProvider) método para convertir un valor entero sin signo en su representación de cadena equivalente. La conversión usa la referencia cultural invariable y el objeto personalizado NumberFormatInfo . La salida indica que no se usa esta información de formato, porque de forma predeterminada el especificador de formato "G" no incluye un signo positivo con valores positivos.

uint number = UInt32.MaxValue;
System.Globalization.NumberFormatInfo nfi = new System.Globalization.NumberFormatInfo();
nfi.NegativeSign = "~";
nfi.PositiveSign = "!";

Console.WriteLine("{0,-8}  -->  {1,8}",
                  Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture),
                  Convert.ToString(number, nfi));
// The example displays the following output:
//       4294967295  -->  4294967295

let number = UInt32.MaxValue
let nfi = NumberFormatInfo()
nfi.NegativeSign <- "~"
nfi.PositiveSign <- "!"

printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture),-8}  -->  {Convert.ToString(number, nfi),8}"
// The example displays the following output:
//       4294967295  -->  4294967295

Dim number As UInteger = UInt32.MaxValue
Dim nfi As New System.Globalization.NumberFormatInfo()
nfi.NegativeSign = "~"
nfi.PositiveSign = "!"

Console.WriteLine("{0,-8}  -->  {1,8}", _
                  Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture), _
                  Convert.ToString(number, nfi))
' The example displays the following output:
'       4294967295  -->  4294967295

Comentarios

Esta implementación es idéntica a UInt32.ToString(IFormatProvider).

ToString(UInt64, IFormatProvider)

Source:

Convert.cs

Importante

Esta API no es conforme a CLS.

Convierte el valor del entero de 64 bits sin signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(System::UInt64 value, IFormatProvider ^ provider);

[System.CLSCompliant(false)]
public static string ToString (ulong value, IFormatProvider? provider);

[<System.CLSCompliant(false)>]
static member ToString : uint64 * IFormatProvider -> string

Public Shared Function ToString (value As ULong, provider As IFormatProvider) As String

Parámetros

value

UInt64

Entero de 64 bits sin signo que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Atributos

CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se define una clase personalizada NumberFormatInfo que define su signo negativo como la cadena "~" y su signo positivo como la cadena "!". A continuación, llama al ToString(UInt64, IFormatProvider) método para convertir un valor entero largo sin signo en su representación de cadena equivalente. La conversión usa la referencia cultural invariable y el objeto personalizado NumberFormatInfo . La salida indica que esta información de formato no se usa, porque de forma predeterminada el especificador de formato "G" no incluye un signo positivo con valores positivos.

ulong number = UInt64.MaxValue;
System.Globalization.NumberFormatInfo nfi = new System.Globalization.NumberFormatInfo();
nfi.NegativeSign = "~";
nfi.PositiveSign = "!";

Console.WriteLine("{0,-12}  -->  {1,12}",
                  Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture),
                  Convert.ToString(number, nfi));
// The example displays the following output:
//    18446744073709551615  -->  18446744073709551615

let number = UInt64.MaxValue
let nfi = NumberFormatInfo()
nfi.NegativeSign <- "~"
nfi.PositiveSign <- "!"

printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture),-12}  -->  {Convert.ToString(number, nfi),12}"
// The example displays the following output:
//    18446744073709551615  -->  18446744073709551615

Dim number As ULong = UInt64.MaxValue
Dim nfi As New System.Globalization.NumberFormatInfo()
nfi.NegativeSign = "~"
nfi.PositiveSign = "!"

Console.WriteLine("{0,-12}  -->  {1,12}", _
                  Convert.ToString(number, System.Globalization.CultureInfo.InvariantCulture), _
                  Convert.ToString(number, nfi))
' The example displays the following output:
'    18446744073709551615  -->  18446744073709551615

Comentarios

Esta implementación es idéntica a UInt64.ToString(IFormatProvider).

ToString(Char, IFormatProvider)

Source:

Convert.cs

Convierte el valor del carácter Unicode especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(char value, IFormatProvider ^ provider);

public static string ToString (char value, IFormatProvider? provider);

static member ToString : char * IFormatProvider -> string

Public Shared Function ToString (value As Char, provider As IFormatProvider) As String

Parámetros

value

Char

Carácter Unicode que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural. Este parámetro se ignora.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte un Char valor en String con el ToString método , utilizando un IFormatProvider objeto que muestra el tipo del proveedor de formato para el que se llama. En el ejemplo se muestra que no se hace referencia al IFormatProvider objeto .

// Example of Convert::ToString( non-numeric types, IFormatProvider ).
using namespace System;
using namespace System::Globalization;

#define null (Object^)0

// An instance of this class can be passed to methods that require 
// an IFormatProvider.
ref class DummyProvider: public IFormatProvider
{
public:

   // Normally, GetFormat returns an object of the requested type
   // (usually itself) if it is able; otherwise, it returns Nothing. 
   virtual Object^ GetFormat( Type^ argType )
   {
      // Here, the type of argType is displayed, and GetFormat
      // always returns Nothing.
      Console::Write( "{0,-40}", argType->ToString() );
      return null;
   }
};

int main()
{
   // Create an instance of the IFormatProvider.
   DummyProvider^ provider = gcnew DummyProvider;
   String^ converted;

   // Convert these values using DummyProvider.
   int Int32A = -252645135;
   double DoubleA = 61680.3855;
   Object^ ObjDouble =  -98765.4321;
   DateTime DayTimeA = DateTime(2001,9,11,13,45,0);
   bool BoolA = true;
   String^ StringA = "Qwerty";
   Char CharA = '$';
   TimeSpan TSpanA = TimeSpan(0,18,0);
   Object^ ObjOther = static_cast<Object^>(provider);
   Console::WriteLine( "This example of "
   "Convert::ToString( non-numeric, IFormatProvider* ) \n"
   "generates the following output. The provider type, "
   "argument type, \nand argument value are displayed." );
   Console::WriteLine( "\nNote: The IFormatProvider object is "
   "not called for Boolean, String, \nChar, TimeSpan, "
   "and non-numeric Object." );

   // The format provider is called for these conversions.
   Console::WriteLine();
   converted = Convert::ToString( Int32A, provider );
   Console::WriteLine( "int      {0}", converted );
   converted = Convert::ToString( DoubleA, provider );
   Console::WriteLine( "double   {0}", converted );
   converted = Convert::ToString( ObjDouble, provider );
   Console::WriteLine( "Object   {0}", converted );
   converted = Convert::ToString( DayTimeA, provider );
   Console::WriteLine( "DateTime {0}", converted );

   // The format provider is not called for these conversions.
   Console::WriteLine();
   converted = Convert::ToString( BoolA, provider );
   Console::WriteLine( "bool     {0}", converted );
   converted = Convert::ToString( StringA, provider );
   Console::WriteLine( "String   {0}", converted );
   converted = Convert::ToString( CharA, provider );
   Console::WriteLine( "Char     {0}", converted );
   converted = Convert::ToString( TSpanA, provider );
   Console::WriteLine( "TimeSpan {0}", converted );
   converted = Convert::ToString( ObjOther, provider );
   Console::WriteLine( "Object   {0}", converted );
}

/*
This example of Convert::ToString( non-numeric, IFormatProvider* )
generates the following output. The provider type, argument type,
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String,
Char, TimeSpan, and non-numeric Object.

System.Globalization.NumberFormatInfo   int      -252645135
System.Globalization.NumberFormatInfo   double   61680.3855
System.Globalization.NumberFormatInfo   Object   -98765.4321
System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM

bool     True
String   Qwerty
Char     $
TimeSpan 00:18:00
Object   DummyProvider
*/

// Example of Convert.ToString( non-numeric types, IFormatProvider ).
using System;
using System.Globalization;

// An instance of this class can be passed to methods that require
// an IFormatProvider.
public class DummyProvider : IFormatProvider
{
    // Normally, GetFormat returns an object of the requested type
    // (usually itself) if it is able; otherwise, it returns Nothing.
    public object GetFormat( Type argType )
    {
        // Here, the type of argType is displayed, and GetFormat
        // always returns Nothing.
        Console.Write( "{0,-40}", argType.ToString( ) );
        return null;
    }
}

class ConvertNonNumericProviderDemo
{
    static void Main( )
    {
        // Create an instance of the IFormatProvider.
        DummyProvider provider = new DummyProvider( );
        string converted;

        // Convert these values using DummyProvider.
        int      Int32A     = -252645135;
        double   DoubleA    = 61680.3855;
        object   ObjDouble  = (object)( -98765.4321 );
        DateTime DayTimeA   = new DateTime( 2001, 9, 11, 13, 45, 0 );

        bool     BoolA      = true;
        string   StringA    = "Qwerty";
        char     CharA      = '$';
        TimeSpan TSpanA     = new TimeSpan( 0, 18, 0 );
        object   ObjOther   = (object)provider;

        Console.WriteLine( "This example of " +
            "Convert.ToString( non-numeric, IFormatProvider ) \n" +
            "generates the following output. The provider type, " +
            "argument type, \nand argument value are displayed." );
        Console.WriteLine( "\nNote: The IFormatProvider object is " +
            "not called for Boolean, String, \nChar, TimeSpan, " +
            "and non-numeric Object." );

        // The format provider is called for these conversions.
        Console.WriteLine( );
        converted = Convert.ToString( Int32A, provider );
        Console.WriteLine( "int      {0}", converted );
        converted = Convert.ToString( DoubleA, provider );
        Console.WriteLine( "double   {0}", converted );
        converted = Convert.ToString( ObjDouble, provider );
        Console.WriteLine( "object   {0}", converted );
        converted = Convert.ToString( DayTimeA, provider );
        Console.WriteLine( "DateTime {0}", converted );

        // The format provider is not called for these conversions.
        Console.WriteLine( );
        converted = Convert.ToString( BoolA, provider );
        Console.WriteLine( "bool     {0}", converted );
        converted = Convert.ToString( StringA, provider );
        Console.WriteLine( "string   {0}", converted );
        converted = Convert.ToString( CharA, provider );
        Console.WriteLine( "char     {0}", converted );
        converted = Convert.ToString( TSpanA, provider );
        Console.WriteLine( "TimeSpan {0}", converted );
        converted = Convert.ToString( ObjOther, provider );
        Console.WriteLine( "object   {0}", converted );
    }
}

/*
This example of Convert.ToString( non-numeric, IFormatProvider )
generates the following output. The provider type, argument type,
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String,
Char, TimeSpan, and non-numeric Object.

System.Globalization.NumberFormatInfo   int      -252645135
System.Globalization.NumberFormatInfo   double   61680.3855
System.Globalization.NumberFormatInfo   object   -98765.4321
System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM

bool     True
string   Qwerty
char     $
TimeSpan 00:18:00
object   DummyProvider

*/

// Example of Convert.ToString(non-numeric types, IFormatProvider).
open System
open System.Globalization

// Create an instance of the IFormatProvider with an object expression.
let provider =
    { new IFormatProvider with
        // Normally, GetFormat returns an object of the requested type
        // (usually itself) if it is able; otherwise, it returns Nothing.
        member _.GetFormat(argType: Type) =
            // Here, the type of argType is displayed, and GetFormat
            // always returns Nothing.
            printf $"{argType,-40}"
            null 
    }

// Convert these values using DummyProvider.
let Int32A     = -252645135
let DoubleA    = 61680.3855
let ObjDouble  = -98765.4321 :> obj
let DayTimeA   = DateTime(2001, 9, 11, 13, 45, 0)

let BoolA      = true
let StringA    = "Qwerty"
let CharA      = '$'
let TSpanA     = TimeSpan(0, 18, 0)
let ObjOther   = provider :> obj

[<EntryPoint>]
let main _ =
    printfn
        """This example of Convert.ToString(non-numeric, IFormatProvider) 
generates the following output. The provider type, argument type, 
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String, 
Char, TimeSpan, and non-numeric Object."""

    // The format provider is called for these conversions.
    printfn ""
    let converted = Convert.ToString(Int32A, provider)
    printfn $"int      {converted}"
    let converted = Convert.ToString(DoubleA, provider)
    printfn $"double   {converted}"
    let converted = Convert.ToString(ObjDouble, provider)
    printfn $"object   {converted}"
    let converted = Convert.ToString(DayTimeA, provider)
    printfn $"DateTime {converted}"

    // The format provider is not called for these conversions.
    printfn ""
    let converted = Convert.ToString(BoolA, provider)
    printfn $"bool     {converted}"
    let converted = Convert.ToString(StringA, provider)
    printfn $"string   {converted}"
    let converted = Convert.ToString(CharA, provider)
    printfn $"char     {converted}"
    let converted = Convert.ToString(TSpanA, provider)
    printfn $"TimeSpan {converted}"
    let converted = Convert.ToString(ObjOther, provider)
    printfn $"object   {converted}"

    0

// This example of Convert.ToString(non-numeric, IFormatProvider)
// generates the following output. The provider type, argument type,
// and argument value are displayed.
//
// Note: The IFormatProvider object is not called for Boolean, String,
// Char, TimeSpan, and non-numeric Object.
//
// System.Globalization.NumberFormatInfo   int      -252645135
// System.Globalization.NumberFormatInfo   double   61680.3855
// System.Globalization.NumberFormatInfo   object   -98765.4321
// System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM
//
// bool     True
// string   Qwerty
// char     $
// TimeSpan 00:18:00
// object   DummyProvider

' Example of Convert.ToString( non-numeric types, IFormatProvider ).
Imports System.Globalization

' An instance of this class can be passed to methods that require 
' an IFormatProvider.
Public Class DummyProvider
    Implements IFormatProvider

    ' Normally, GetFormat returns an object of the requested type
    ' (usually itself) if it is able; otherwise, it returns Nothing. 
    Public Function GetFormat( argType As Type ) As Object _
        Implements IFormatProvider.GetFormat

        ' Here, the type of argType is displayed, and GetFormat
        ' always returns Nothing.
        Console.Write( "{0,-40}", argType.ToString( ) )
        Return Nothing

    End Function 
End Class

Module ConvertNonNumericProviderDemo

    Sub Main( )

        ' Create an instance of the IFormatProvider.
        Dim provider    As New DummyProvider( )
        Dim converted   As String

        ' Convert these values using DummyProvider.
        Dim Int32A      As Integer  = -252645135   
        Dim DoubleA     As Double   = 61680.3855
        Dim ObjDouble   As Object   = CType( -98765.4321, Object )
        Dim DayTimeA    As DateTime = _
                            new DateTime( 2001, 9, 11, 13, 45, 0 )

        Dim BoolA       As Boolean  = True
        Dim StringA     As String   = "Qwerty"
        Dim CharA       As Char     = "$"c
        Dim TSpanA      As TimeSpan = New TimeSpan( 0, 18, 0 )
        Dim ObjOther    As Object   = CType( provider, Object )

        Console.WriteLine( "This example of " & _
            "Convert.ToString( non-numeric, IFormatProvider ) " & _
            vbCrLf & "generates the following output. The " & _
            "provider type, argument type, " & vbCrLf & "and " & _
            "argument value are displayed." )
        Console.WriteLine( vbCrLf & _
            "Note: The IFormatProvider object is not called for " & _
            "Boolean, String, " & vbCrLf & "Char, TimeSpan, " & _
            "and non-numeric Object." )

        ' The format provider is called for these conversions.
        Console.WriteLine( )
        converted =  Convert.ToString( Int32A, provider )
        Console.WriteLine( "Int32    {0}", converted )
        converted =  Convert.ToString( DoubleA, provider )
        Console.WriteLine( "Double   {0}", converted )
        converted =  Convert.ToString( ObjDouble, provider )
        Console.WriteLine( "Object   {0}", converted )
        converted =  Convert.ToString( DayTimeA, provider )
        Console.WriteLine( "DateTime {0}", converted )

        ' The format provider is not called for these conversions.
        Console.WriteLine( )
        converted =  Convert.ToString( BoolA, provider )
        Console.WriteLine( "Boolean  {0}", converted )
        converted =  Convert.ToString( StringA, provider )
        Console.WriteLine( "String   {0}", converted )
        converted =  Convert.ToString( CharA, provider )
        Console.WriteLine( "Char     {0}", converted )
        converted =  Convert.ToString( TSpanA, provider )
        Console.WriteLine( "TimeSpan {0}", converted )
        converted =  Convert.ToString( ObjOther, provider )
        Console.WriteLine( "Object   {0}", converted )

    End Sub
End Module

' This example of Convert.ToString( non-numeric, IFormatProvider )
' generates the following output. The provider type, argument type,
' and argument value are displayed.
'
' Note: The IFormatProvider object is not called for Boolean, String,
' Char, TimeSpan, and non-numeric Object.
' 
' System.Globalization.NumberFormatInfo   Int32    -252645135
' System.Globalization.NumberFormatInfo   Double   61680.3855
' System.Globalization.NumberFormatInfo   Object   -98765.4321
' System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM
' 
' Boolean  True
' String   Qwerty
' Char     $
' TimeSpan 00:18:00
' Object   DummyProvider

Comentarios

Esta implementación es idéntica a Char.ToString(). Se omite el parámetro provider.

ToString(Int64, Int32)

Source:

Convert.cs

Convierte el valor de un entero de 64 bits con signo en su representación de cadena equivalente en una base especificada.

public:
 static System::String ^ ToString(long value, int toBase);

public static string ToString (long value, int toBase);

static member ToString : int64 * int -> string

Public Shared Function ToString (value As Long, toBase As Integer) As String

Parámetros

value

Int64

Entero de 64 bits con signo que se va a convertir.

toBase

Int32

Base del valor devuelto, que debe ser 2, 8, 10 ó 16.

Devoluciones

String

Representación de cadena de value en la base toBase.

Excepciones

ArgumentException

toBase no es 2, 8, 10 o 16.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de enteros largo en sus representaciones de cadena binarias, hexadecimales, decimales y hexadecimales equivalentes.

int[] bases = { 2, 8, 10, 16};
long[] numbers = { Int64.MinValue, -193275430, -13621, -18, 12,
                   1914206117, Int64.MaxValue };

foreach (int baseValue in bases)
{
   Console.WriteLine("Base {0} conversion:", baseValue);
   foreach (long number in numbers)
   {
      Console.WriteLine("   {0,-23}  -->  0x{1}",
                        number, Convert.ToString(number, baseValue));
   }
}
// The example displays the following output:
//    Base 2 conversion:
//       -9223372036854775808     -->  0x1000000000000000000000000000000000000000000000000000000000000000
//       -193275430               -->  0x1111111111111111111111111111111111110100011110101101100111011010
//       -13621                   -->  0x1111111111111111111111111111111111111111111111111100101011001011
//       -18                      -->  0x1111111111111111111111111111111111111111111111111111111111101110
//       12                       -->  0x1100
//       1914206117               -->  0x1110010000110000111011110100101
//       9223372036854775807      -->  0x111111111111111111111111111111111111111111111111111111111111111
//    Base 8 conversion:
//       -9223372036854775808     -->  0x1000000000000000000000
//       -193275430               -->  0x1777777777776436554732
//       -13621                   -->  0x1777777777777777745313
//       -18                      -->  0x1777777777777777777756
//       12                       -->  0x14
//       1914206117               -->  0x16206073645
//       9223372036854775807      -->  0x777777777777777777777
//    Base 10 conversion:
//       -9223372036854775808     -->  0x-9223372036854775808
//       -193275430               -->  0x-193275430
//       -13621                   -->  0x-13621
//       -18                      -->  0x-18
//       12                       -->  0x12
//       1914206117               -->  0x1914206117
//       9223372036854775807      -->  0x9223372036854775807
//    Base 16 conversion:
//       -9223372036854775808     -->  0x8000000000000000
//       -193275430               -->  0xfffffffff47ad9da
//       -13621                   -->  0xffffffffffffcacb
//       -18                      -->  0xffffffffffffffee
//       12                       -->  0xc
//       1914206117               -->  0x721877a5
//       9223372036854775807      -->  0x7fffffffffffffff

let bases = [| 2; 8; 10; 16 |]
let numbers =
    [| Int64.MinValue; -193275430; -13621; -18; 12; 1914206117; Int64.MaxValue |]

for baseValue in bases do
    printfn $"Base {baseValue} conversion:"
    for number in numbers do
        printfn $"   {number,-23}  -->  0x{Convert.ToString(number, baseValue)}"
// The example displays the following output:
//    Base 2 conversion:
//       -9223372036854775808     -->  0x1000000000000000000000000000000000000000000000000000000000000000
//       -193275430               -->  0x1111111111111111111111111111111111110100011110101101100111011010
//       -13621                   -->  0x1111111111111111111111111111111111111111111111111100101011001011
//       -18                      -->  0x1111111111111111111111111111111111111111111111111111111111101110
//       12                       -->  0x1100
//       1914206117               -->  0x1110010000110000111011110100101
//       9223372036854775807      -->  0x111111111111111111111111111111111111111111111111111111111111111
//    Base 8 conversion:
//       -9223372036854775808     -->  0x1000000000000000000000
//       -193275430               -->  0x1777777777776436554732
//       -13621                   -->  0x1777777777777777745313
//       -18                      -->  0x1777777777777777777756
//       12                       -->  0x14
//       1914206117               -->  0x16206073645
//       9223372036854775807      -->  0x777777777777777777777
//    Base 10 conversion:
//       -9223372036854775808     -->  0x-9223372036854775808
//       -193275430               -->  0x-193275430
//       -13621                   -->  0x-13621
//       -18                      -->  0x-18
//       12                       -->  0x12
//       1914206117               -->  0x1914206117
//       9223372036854775807      -->  0x9223372036854775807
//    Base 16 conversion:
//       -9223372036854775808     -->  0x8000000000000000
//       -193275430               -->  0xfffffffff47ad9da
//       -13621                   -->  0xffffffffffffcacb
//       -18                      -->  0xffffffffffffffee
//       12                       -->  0xc
//       1914206117               -->  0x721877a5
//       9223372036854775807      -->  0x7fffffffffffffff

Dim bases() As Integer = { 2, 8, 10, 16}
Dim numbers() As Long = { Int64.MinValue, -193275430, -13621, -18, 12, _
                             1914206117, Int64.MaxValue }

For Each base As Integer In bases
   Console.WriteLine("Base {0} conversion:", base)
   For Each number As Long In numbers
      Console.WriteLine("   {0,-23}  -->  0x{1}", _
                        number, Convert.ToString(number, base))
   Next
Next
' The example displays the following output:
'    Base 2 conversion:
'       -9223372036854775808     -->  0x1000000000000000000000000000000000000000000000000000000000000000
'       -193275430               -->  0x1111111111111111111111111111111111110100011110101101100111011010
'       -13621                   -->  0x1111111111111111111111111111111111111111111111111100101011001011
'       -18                      -->  0x1111111111111111111111111111111111111111111111111111111111101110
'       12                       -->  0x1100
'       1914206117               -->  0x1110010000110000111011110100101
'       9223372036854775807      -->  0x111111111111111111111111111111111111111111111111111111111111111
'    Base 8 conversion:
'       -9223372036854775808     -->  0x1000000000000000000000
'       -193275430               -->  0x1777777777776436554732
'       -13621                   -->  0x1777777777777777745313
'       -18                      -->  0x1777777777777777777756
'       12                       -->  0x14
'       1914206117               -->  0x16206073645
'       9223372036854775807      -->  0x777777777777777777777
'    Base 10 conversion:
'       -9223372036854775808     -->  0x-9223372036854775808
'       -193275430               -->  0x-193275430
'       -13621                   -->  0x-13621
'       -18                      -->  0x-18
'       12                       -->  0x12
'       1914206117               -->  0x1914206117
'       9223372036854775807      -->  0x9223372036854775807
'    Base 16 conversion:
'       -9223372036854775808     -->  0x8000000000000000
'       -193275430               -->  0xfffffffff47ad9da
'       -13621                   -->  0xffffffffffffcacb
'       -18                      -->  0xffffffffffffffee
'       12                       -->  0xc
'       1914206117               -->  0x721877a5
'       9223372036854775807      -->  0x7fffffffffffffff

let bases = [2; 8; 10; 16]
let numbers = [ Int64.MinValue; -193275430L; -13621L; -18L; 12L; 1914206117L; Int64.MaxValue ]

for baseValue in bases do
    printfn "Base %i conversion:" baseValue
    for number in numbers do
        printfn "   % -23i  -->  0x%s" number (Convert.ToString (number, baseValue))
// The example displays the following output:
//     Base 2 conversion:
//        -9223372036854775808     -->  0x1000000000000000000000000000000000000000000000000000000000000000
//        -193275430               -->  0x1111111111111111111111111111111111110100011110101101100111011010
//        -13621                   -->  0x1111111111111111111111111111111111111111111111111100101011001011
//        -18                      -->  0x1111111111111111111111111111111111111111111111111111111111101110
//         12                      -->  0x1100
//         1914206117              -->  0x1110010000110000111011110100101
//         9223372036854775807     -->  0x111111111111111111111111111111111111111111111111111111111111111
//     Base 8 conversion:
//        -9223372036854775808     -->  0x1000000000000000000000
//        -193275430               -->  0x1777777777776436554732
//        -13621                   -->  0x1777777777777777745313
//        -18                      -->  0x1777777777777777777756
//         12                      -->  0x14
//         1914206117              -->  0x16206073645
//         9223372036854775807     -->  0x777777777777777777777
//     Base 10 conversion:
//        -9223372036854775808     -->  0x-9223372036854775808
//        -193275430               -->  0x-193275430
//        -13621                   -->  0x-13621
//        -18                      -->  0x-18
//         12                      -->  0x12
//         1914206117              -->  0x1914206117
//         9223372036854775807     -->  0x9223372036854775807
//     Base 16 conversion:
//        -9223372036854775808     -->  0x8000000000000000
//        -193275430               -->  0xfffffffff47ad9da
//        -13621                   -->  0xffffffffffffcacb
//        -18                      -->  0xffffffffffffffee
//         12                      -->  0xc
//         1914206117              -->  0x721877a5
//         9223372036854775807     -->  0x7fffffffffffffff

Comentarios

Si value es positivo y toBase no es 10, la cadena devuelta usa la representación de signo y magnitud. Si value es negativo y toBase no es 10, la cadena devuelta usa la representación complementaria de dos. Esto significa que el bit de orden superior del byte de orden más alto (bit 63) se interpreta como bit de signo. ToString(Int64, Int32) Si se llama al método para crear una cadena que se convertirá más adelante en un número, se debe llamar a un método correspondiente que supone que se debe llamar a una representación numérica similar para realizar la conversión. Estos métodos incluyen Convert.ToInt64(String, Int32) y Int64.Parse(String, NumberStyles).

ToString(Byte, Int32)

Source:

Convert.cs

Convierte el valor de un entero de 8 bits sin signo en su representación de cadena equivalente en una base especificada.

public:
 static System::String ^ ToString(System::Byte value, int toBase);

public static string ToString (byte value, int toBase);

static member ToString : byte * int -> string

Public Shared Function ToString (value As Byte, toBase As Integer) As String

Parámetros

value

Byte

Entero de 8 bits sin signo que se va a convertir.

toBase

Int32

Base del valor devuelto, que debe ser 2, 8, 10 ó 16.

Devoluciones

String

Representación de cadena de value en la base toBase.

Excepciones

ArgumentException

toBase no es 2, 8, 10 o 16.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de bytes en sus representaciones de cadena binarias, hexadecimales, decimales y hexadecimales equivalentes.

int[] bases = { 2, 8, 10, 16};
byte[] numbers = { Byte.MinValue, 12, 103, Byte.MaxValue};

foreach (int baseValue in bases)
{
   Console.WriteLine("Base {0} conversion:", baseValue);
   foreach (byte number in numbers)
   {
      Console.WriteLine("   {0,-5}  -->  0x{1}",
                        number, Convert.ToString(number, baseValue));
   }
}
// The example displays the following output:
//       Base 2 conversion:
//          0      -->  0x0
//          12     -->  0x1100
//          103    -->  0x1100111
//          255    -->  0x11111111
//       Base 8 conversion:
//          0      -->  0x0
//          12     -->  0x14
//          103    -->  0x147
//          255    -->  0x377
//       Base 10 conversion:
//          0      -->  0x0
//          12     -->  0x12
//          103    -->  0x103
//          255    -->  0x255
//       Base 16 conversion:
//          0      -->  0x0
//          12     -->  0xc
//          103    -->  0x67
//          255    -->  0xff

let bases = [| 2; 8; 10; 16 |]
let numbers = [| Byte.MinValue; 12uy; 103uy; Byte.MaxValue |]

for baseValue in bases do
    printfn $"Base {baseValue} conversion:"
    for number in numbers do
        Console.WriteLine("   {0,-5}  -->  0x{1}",
                        number, Convert.ToString(number, baseValue))
// The example displays the following output:
//       Base 2 conversion:
//          0      -->  0x0
//          12     -->  0x1100
//          103    -->  0x1100111
//          255    -->  0x11111111
//       Base 8 conversion:
//          0      -->  0x0
//          12     -->  0x14
//          103    -->  0x147
//          255    -->  0x377
//       Base 10 conversion:
//          0      -->  0x0
//          12     -->  0x12
//          103    -->  0x103
//          255    -->  0x255
//       Base 16 conversion:
//          0      -->  0x0
//          12     -->  0xc
//          103    -->  0x67
//          255    -->  0xff

Dim bases() As Integer = { 2, 8, 10, 16}
Dim numbers() As Byte = { Byte.MinValue, 12, 103, Byte.MaxValue}

For Each base As Integer In bases
   Console.WriteLine("Base {0} conversion:", base)
   For Each number As Byte In numbers
      Console.WriteLine("   {0,-5}  -->  0x{1}", _
                        number, Convert.ToString(number, base))
   Next
Next
' The example displays the following output:
'       Base 2 conversion:
'          0      -->  0x0
'          12     -->  0x1100
'          103    -->  0x1100111
'          255    -->  0x11111111
'       Base 8 conversion:
'          0      -->  0x0
'          12     -->  0x14
'          103    -->  0x147
'          255    -->  0x377
'       Base 10 conversion:
'          0      -->  0x0
'          12     -->  0x12
'          103    -->  0x103
'          255    -->  0x255
'       Base 16 conversion:
'          0      -->  0x0
'          12     -->  0xc
'          103    -->  0x67
'          255    -->  0xff

let bases = [2; 8; 10; 16]
let numbers = [ Byte.MinValue; 12uy; 103uy; Byte.MaxValue ]

for baseValue in bases do
    printfn "Base %i conversion:" baseValue
    for number in numbers do
        printfn "   % -5i  -->  0x%s" number (Convert.ToString (number, baseValue))
// The example displays the following output:
//     Base 2 conversion:
//         0     -->  0x0
//         12    -->  0x1100
//         103   -->  0x1100111
//         255   -->  0x11111111
//     Base 8 conversion:
//         0     -->  0x0
//         12    -->  0x14
//         103   -->  0x147
//         255   -->  0x377
//     Base 10 conversion:
//         0     -->  0x0
//         12    -->  0x12
//         103   -->  0x103
//         255   -->  0x255
//     Base 16 conversion:
//         0     -->  0x0
//         12    -->  0xc
//         103   -->  0x67
//         255   -->  0xff

Comentarios

Si toBase no es igual a 10, la cadena devuelta por el Convert.ToString(Byte, Int32) método representa value solo por su magnitud. Si se llama al método para crear una cadena que se convertirá más adelante en un número, se debe llamar a un método correspondiente que supone que se debe llamar a una representación numérica de solo magnitud para realizar la conversión. Estos métodos incluyen Convert.ToByte(String, Int32) o Byte.Parse(String, NumberStyles).

ToString(Boolean, IFormatProvider)

Source:

Convert.cs

Convierte el valor booleano especificado en su representación de cadena equivalente.

public:
 static System::String ^ ToString(bool value, IFormatProvider ^ provider);

public static string ToString (bool value, IFormatProvider? provider);

static member ToString : bool * IFormatProvider -> string

Public Shared Function ToString (value As Boolean, provider As IFormatProvider) As String

Parámetros

value

Boolean

Valor booleano que se va a convertir.

provider

IFormatProvider

Una instancia de un objeto. Este parámetro se ignora.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte un Boolean valor en String con el ToString método , utilizando un IFormatProvider objeto que muestra el tipo del proveedor de formato para el que se llama. En el ejemplo se muestra que no se hace referencia al IFormatProvider objeto .

// Example of Convert::ToString( non-numeric types, IFormatProvider ).
using namespace System;
using namespace System::Globalization;

#define null (Object^)0

// An instance of this class can be passed to methods that require 
// an IFormatProvider.
ref class DummyProvider: public IFormatProvider
{
public:

   // Normally, GetFormat returns an object of the requested type
   // (usually itself) if it is able; otherwise, it returns Nothing. 
   virtual Object^ GetFormat( Type^ argType )
   {
      // Here, the type of argType is displayed, and GetFormat
      // always returns Nothing.
      Console::Write( "{0,-40}", argType->ToString() );
      return null;
   }
};

int main()
{
   // Create an instance of the IFormatProvider.
   DummyProvider^ provider = gcnew DummyProvider;
   String^ converted;

   // Convert these values using DummyProvider.
   int Int32A = -252645135;
   double DoubleA = 61680.3855;
   Object^ ObjDouble =  -98765.4321;
   DateTime DayTimeA = DateTime(2001,9,11,13,45,0);
   bool BoolA = true;
   String^ StringA = "Qwerty";
   Char CharA = '$';
   TimeSpan TSpanA = TimeSpan(0,18,0);
   Object^ ObjOther = static_cast<Object^>(provider);
   Console::WriteLine( "This example of "
   "Convert::ToString( non-numeric, IFormatProvider* ) \n"
   "generates the following output. The provider type, "
   "argument type, \nand argument value are displayed." );
   Console::WriteLine( "\nNote: The IFormatProvider object is "
   "not called for Boolean, String, \nChar, TimeSpan, "
   "and non-numeric Object." );

   // The format provider is called for these conversions.
   Console::WriteLine();
   converted = Convert::ToString( Int32A, provider );
   Console::WriteLine( "int      {0}", converted );
   converted = Convert::ToString( DoubleA, provider );
   Console::WriteLine( "double   {0}", converted );
   converted = Convert::ToString( ObjDouble, provider );
   Console::WriteLine( "Object   {0}", converted );
   converted = Convert::ToString( DayTimeA, provider );
   Console::WriteLine( "DateTime {0}", converted );

   // The format provider is not called for these conversions.
   Console::WriteLine();
   converted = Convert::ToString( BoolA, provider );
   Console::WriteLine( "bool     {0}", converted );
   converted = Convert::ToString( StringA, provider );
   Console::WriteLine( "String   {0}", converted );
   converted = Convert::ToString( CharA, provider );
   Console::WriteLine( "Char     {0}", converted );
   converted = Convert::ToString( TSpanA, provider );
   Console::WriteLine( "TimeSpan {0}", converted );
   converted = Convert::ToString( ObjOther, provider );
   Console::WriteLine( "Object   {0}", converted );
}

/*
This example of Convert::ToString( non-numeric, IFormatProvider* )
generates the following output. The provider type, argument type,
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String,
Char, TimeSpan, and non-numeric Object.

System.Globalization.NumberFormatInfo   int      -252645135
System.Globalization.NumberFormatInfo   double   61680.3855
System.Globalization.NumberFormatInfo   Object   -98765.4321
System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM

bool     True
String   Qwerty
Char     $
TimeSpan 00:18:00
Object   DummyProvider
*/

// Example of Convert.ToString( non-numeric types, IFormatProvider ).
using System;
using System.Globalization;

// An instance of this class can be passed to methods that require
// an IFormatProvider.
public class DummyProvider : IFormatProvider
{
    // Normally, GetFormat returns an object of the requested type
    // (usually itself) if it is able; otherwise, it returns Nothing.
    public object GetFormat( Type argType )
    {
        // Here, the type of argType is displayed, and GetFormat
        // always returns Nothing.
        Console.Write( "{0,-40}", argType.ToString( ) );
        return null;
    }
}

class ConvertNonNumericProviderDemo
{
    static void Main( )
    {
        // Create an instance of the IFormatProvider.
        DummyProvider provider = new DummyProvider( );
        string converted;

        // Convert these values using DummyProvider.
        int      Int32A     = -252645135;
        double   DoubleA    = 61680.3855;
        object   ObjDouble  = (object)( -98765.4321 );
        DateTime DayTimeA   = new DateTime( 2001, 9, 11, 13, 45, 0 );

        bool     BoolA      = true;
        string   StringA    = "Qwerty";
        char     CharA      = '$';
        TimeSpan TSpanA     = new TimeSpan( 0, 18, 0 );
        object   ObjOther   = (object)provider;

        Console.WriteLine( "This example of " +
            "Convert.ToString( non-numeric, IFormatProvider ) \n" +
            "generates the following output. The provider type, " +
            "argument type, \nand argument value are displayed." );
        Console.WriteLine( "\nNote: The IFormatProvider object is " +
            "not called for Boolean, String, \nChar, TimeSpan, " +
            "and non-numeric Object." );

        // The format provider is called for these conversions.
        Console.WriteLine( );
        converted = Convert.ToString( Int32A, provider );
        Console.WriteLine( "int      {0}", converted );
        converted = Convert.ToString( DoubleA, provider );
        Console.WriteLine( "double   {0}", converted );
        converted = Convert.ToString( ObjDouble, provider );
        Console.WriteLine( "object   {0}", converted );
        converted = Convert.ToString( DayTimeA, provider );
        Console.WriteLine( "DateTime {0}", converted );

        // The format provider is not called for these conversions.
        Console.WriteLine( );
        converted = Convert.ToString( BoolA, provider );
        Console.WriteLine( "bool     {0}", converted );
        converted = Convert.ToString( StringA, provider );
        Console.WriteLine( "string   {0}", converted );
        converted = Convert.ToString( CharA, provider );
        Console.WriteLine( "char     {0}", converted );
        converted = Convert.ToString( TSpanA, provider );
        Console.WriteLine( "TimeSpan {0}", converted );
        converted = Convert.ToString( ObjOther, provider );
        Console.WriteLine( "object   {0}", converted );
    }
}

/*
This example of Convert.ToString( non-numeric, IFormatProvider )
generates the following output. The provider type, argument type,
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String,
Char, TimeSpan, and non-numeric Object.

System.Globalization.NumberFormatInfo   int      -252645135
System.Globalization.NumberFormatInfo   double   61680.3855
System.Globalization.NumberFormatInfo   object   -98765.4321
System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM

bool     True
string   Qwerty
char     $
TimeSpan 00:18:00
object   DummyProvider

*/

// Example of Convert.ToString(non-numeric types, IFormatProvider).
open System
open System.Globalization

// Create an instance of the IFormatProvider with an object expression.
let provider =
    { new IFormatProvider with
        // Normally, GetFormat returns an object of the requested type
        // (usually itself) if it is able; otherwise, it returns Nothing.
        member _.GetFormat(argType: Type) =
            // Here, the type of argType is displayed, and GetFormat
            // always returns Nothing.
            printf $"{argType,-40}"
            null 
    }

// Convert these values using DummyProvider.
let Int32A     = -252645135
let DoubleA    = 61680.3855
let ObjDouble  = -98765.4321 :> obj
let DayTimeA   = DateTime(2001, 9, 11, 13, 45, 0)

let BoolA      = true
let StringA    = "Qwerty"
let CharA      = '$'
let TSpanA     = TimeSpan(0, 18, 0)
let ObjOther   = provider :> obj

[<EntryPoint>]
let main _ =
    printfn
        """This example of Convert.ToString(non-numeric, IFormatProvider) 
generates the following output. The provider type, argument type, 
and argument value are displayed.

Note: The IFormatProvider object is not called for Boolean, String, 
Char, TimeSpan, and non-numeric Object."""

    // The format provider is called for these conversions.
    printfn ""
    let converted = Convert.ToString(Int32A, provider)
    printfn $"int      {converted}"
    let converted = Convert.ToString(DoubleA, provider)
    printfn $"double   {converted}"
    let converted = Convert.ToString(ObjDouble, provider)
    printfn $"object   {converted}"
    let converted = Convert.ToString(DayTimeA, provider)
    printfn $"DateTime {converted}"

    // The format provider is not called for these conversions.
    printfn ""
    let converted = Convert.ToString(BoolA, provider)
    printfn $"bool     {converted}"
    let converted = Convert.ToString(StringA, provider)
    printfn $"string   {converted}"
    let converted = Convert.ToString(CharA, provider)
    printfn $"char     {converted}"
    let converted = Convert.ToString(TSpanA, provider)
    printfn $"TimeSpan {converted}"
    let converted = Convert.ToString(ObjOther, provider)
    printfn $"object   {converted}"

    0

// This example of Convert.ToString(non-numeric, IFormatProvider)
// generates the following output. The provider type, argument type,
// and argument value are displayed.
//
// Note: The IFormatProvider object is not called for Boolean, String,
// Char, TimeSpan, and non-numeric Object.
//
// System.Globalization.NumberFormatInfo   int      -252645135
// System.Globalization.NumberFormatInfo   double   61680.3855
// System.Globalization.NumberFormatInfo   object   -98765.4321
// System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM
//
// bool     True
// string   Qwerty
// char     $
// TimeSpan 00:18:00
// object   DummyProvider

' Example of Convert.ToString( non-numeric types, IFormatProvider ).
Imports System.Globalization

' An instance of this class can be passed to methods that require 
' an IFormatProvider.
Public Class DummyProvider
    Implements IFormatProvider

    ' Normally, GetFormat returns an object of the requested type
    ' (usually itself) if it is able; otherwise, it returns Nothing. 
    Public Function GetFormat( argType As Type ) As Object _
        Implements IFormatProvider.GetFormat

        ' Here, the type of argType is displayed, and GetFormat
        ' always returns Nothing.
        Console.Write( "{0,-40}", argType.ToString( ) )
        Return Nothing

    End Function 
End Class

Module ConvertNonNumericProviderDemo

    Sub Main( )

        ' Create an instance of the IFormatProvider.
        Dim provider    As New DummyProvider( )
        Dim converted   As String

        ' Convert these values using DummyProvider.
        Dim Int32A      As Integer  = -252645135   
        Dim DoubleA     As Double   = 61680.3855
        Dim ObjDouble   As Object   = CType( -98765.4321, Object )
        Dim DayTimeA    As DateTime = _
                            new DateTime( 2001, 9, 11, 13, 45, 0 )

        Dim BoolA       As Boolean  = True
        Dim StringA     As String   = "Qwerty"
        Dim CharA       As Char     = "$"c
        Dim TSpanA      As TimeSpan = New TimeSpan( 0, 18, 0 )
        Dim ObjOther    As Object   = CType( provider, Object )

        Console.WriteLine( "This example of " & _
            "Convert.ToString( non-numeric, IFormatProvider ) " & _
            vbCrLf & "generates the following output. The " & _
            "provider type, argument type, " & vbCrLf & "and " & _
            "argument value are displayed." )
        Console.WriteLine( vbCrLf & _
            "Note: The IFormatProvider object is not called for " & _
            "Boolean, String, " & vbCrLf & "Char, TimeSpan, " & _
            "and non-numeric Object." )

        ' The format provider is called for these conversions.
        Console.WriteLine( )
        converted =  Convert.ToString( Int32A, provider )
        Console.WriteLine( "Int32    {0}", converted )
        converted =  Convert.ToString( DoubleA, provider )
        Console.WriteLine( "Double   {0}", converted )
        converted =  Convert.ToString( ObjDouble, provider )
        Console.WriteLine( "Object   {0}", converted )
        converted =  Convert.ToString( DayTimeA, provider )
        Console.WriteLine( "DateTime {0}", converted )

        ' The format provider is not called for these conversions.
        Console.WriteLine( )
        converted =  Convert.ToString( BoolA, provider )
        Console.WriteLine( "Boolean  {0}", converted )
        converted =  Convert.ToString( StringA, provider )
        Console.WriteLine( "String   {0}", converted )
        converted =  Convert.ToString( CharA, provider )
        Console.WriteLine( "Char     {0}", converted )
        converted =  Convert.ToString( TSpanA, provider )
        Console.WriteLine( "TimeSpan {0}", converted )
        converted =  Convert.ToString( ObjOther, provider )
        Console.WriteLine( "Object   {0}", converted )

    End Sub
End Module

' This example of Convert.ToString( non-numeric, IFormatProvider )
' generates the following output. The provider type, argument type,
' and argument value are displayed.
'
' Note: The IFormatProvider object is not called for Boolean, String,
' Char, TimeSpan, and non-numeric Object.
' 
' System.Globalization.NumberFormatInfo   Int32    -252645135
' System.Globalization.NumberFormatInfo   Double   61680.3855
' System.Globalization.NumberFormatInfo   Object   -98765.4321
' System.Globalization.DateTimeFormatInfo DateTime 9/11/2001 1:45:00 PM
' 
' Boolean  True
' String   Qwerty
' Char     $
' TimeSpan 00:18:00
' Object   DummyProvider

Comentarios

Esta implementación es idéntica a Boolean.ToString. Boolean.TrueString Devuelve los true valores y Boolean.FalseString para false los valores.

ToString(Byte, IFormatProvider)

Source:

Convert.cs

Convierte el valor del entero de 8 bits sin signo especificado en su representación de cadena equivalente, usando la información de formato específica de la referencia cultural indicada.

public:
 static System::String ^ ToString(System::Byte value, IFormatProvider ^ provider);

public static string ToString (byte value, IFormatProvider? provider);

static member ToString : byte * IFormatProvider -> string

Public Shared Function ToString (value As Byte, provider As IFormatProvider) As String

Parámetros

value

Byte

Entero de 8 bits sin signo que se va a convertir.

provider

IFormatProvider

Objeto que proporciona información de formato específica de la referencia cultural.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de bytes sin signo en su representación de cadena equivalente mediante las convenciones de formato de las referencias culturales en-US y fr-FR. Dado que el especificador "G" genera de forma predeterminada solo dígitos decimales en la representación de cadena de un valor de byte, el provider parámetro no afecta al formato de la cadena devuelta.

byte[] numbers = { 12, 100, Byte.MaxValue };
// Define the culture names used to display them.
string[] cultureNames = { "en-US", "fr-FR" };

foreach (byte number in numbers)
{
   Console.WriteLine("{0}:", Convert.ToString(number,
                             System.Globalization.CultureInfo.InvariantCulture));
   foreach (string cultureName in cultureNames)
   {
      System.Globalization.CultureInfo culture = new System.Globalization.CultureInfo(cultureName);
      Console.WriteLine("   {0}: {1,20}",
                        culture.Name, Convert.ToString(number, culture));
   }
   Console.WriteLine();
}
// The example displays the following output:
//       12:
//          en-US:                   12
//          fr-FR:                   12
//
//       100:
//          en-US:                  100
//          fr-FR:                  100
//
//       255:
//          en-US:                  255
//          fr-FR:                  255

let numbers = [| 12uy; 100uy; Byte.MaxValue |]
// Define the culture names used to display them.
let cultureNames = [| "en-US"; "fr-FR" |]

for number in numbers do
    printfn $"{Convert.ToString(number, CultureInfo.InvariantCulture)}:"
    for cultureName in cultureNames do
        let culture = CultureInfo cultureName
        printfn $"   {culture.Name}: {Convert.ToString(number, culture),20}"
    printfn ""
// The example displays the following output:
//       12:
//          en-US:                   12
//          fr-FR:                   12
//
//       100:
//          en-US:                  100
//          fr-FR:                  100
//
//       255:
//          en-US:                  255
//          fr-FR:                  255

' Define an array of numbers to display.
Dim numbers() As Byte = { 12, 100, Byte.MaxValue }
' Define the culture names used to display them.
Dim cultureNames() As String = { "en-US", "fr-FR" }

For Each number As Byte In numbers
   Console.WriteLine("{0}:", Convert.ToString(number, _
                             System.Globalization.CultureInfo.InvariantCulture))
   For Each cultureName As String In cultureNames
      Dim culture As New System.Globalization.CultureInfo(cultureName)
      Console.WriteLine("   {0}: {1,20}", _
                        culture.Name, Convert.ToString(number, culture))
   Next
   Console.WriteLine()
Next   
' The example displays the following output:
'       12:
'          en-US:                   12
'          fr-FR:                   12
'       
'       100:
'          en-US:                  100
'          fr-FR:                  100
'       
'       255:
'          en-US:                  255
'          fr-FR:                  255

Comentarios

Esta implementación es idéntica a Byte.ToString.

ToString(Boolean)

Source:

Convert.cs

Convierte el valor booleano especificado en su representación de cadena equivalente.

public:
 static System::String ^ ToString(bool value);

public static string ToString (bool value);

static member ToString : bool -> string

Public Shared Function ToString (value As Boolean) As String

Parámetros

value

Boolean

Valor booleano que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se muestra la conversión de a Boolean , Stringmediante ToString. También muestra que la cadena devuelta por la conversión es igual Boolean.TrueString a o Boolean.FalseString.

bool falseFlag = false;
bool trueFlag = true;

Console.WriteLine(Convert.ToString(falseFlag));
Console.WriteLine(Convert.ToString(falseFlag).Equals(Boolean.FalseString));
Console.WriteLine(Convert.ToString(trueFlag));
Console.WriteLine(Convert.ToString(trueFlag).Equals(Boolean.TrueString));
// The example displays the following output:
//       False
//       True
//       True
//       True

let falseFlag = false
let trueFlag = true

printfn $"{Convert.ToString falseFlag}"
printfn $"{Convert.ToString(falseFlag).Equals Boolean.FalseString}"
printfn $"{Convert.ToString trueFlag}"
printfn $"{Convert.ToString(trueFlag).Equals(Boolean.TrueString)}"
// The example displays the following output:
//       False
//       True
//       True
//       True

Dim falseFlag As Boolean = False
Dim trueFlag As Boolean = True

Console.WriteLine(Convert.ToString(falseFlag))
Console.WriteLine(Convert.ToString(falseFlag).Equals(Boolean.FalseString))
Console.WriteLine(Convert.ToString(trueFlag))
Console.WriteLine(Convert.ToString(trueFlag).Equals(Boolean.TrueString))
' The example displays the following output:
'       False
'       True
'       True
'       True

let falseFlag = false
let trueFlag = true

Console.WriteLine (Convert.ToString falseFlag)
Console.WriteLine (Convert.ToString falseFlag=Boolean.FalseString)
Console.WriteLine (Convert.ToString trueFlag)
Console.WriteLine (Convert.ToString trueFlag=Boolean.TrueString)
// The example displays the following output:
//       False
//       True
//       True
//       True

Comentarios

Esta implementación es idéntica a Boolean.ToString. Boolean.TrueString Devuelve los true valores y Boolean.FalseString para false los valores.

ToString(Byte)

Source:

Convert.cs

Convierte el valor del entero de 8 bits sin signo especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(System::Byte value);

public static string ToString (byte value);

static member ToString : byte -> string

Public Shared Function ToString (value As Byte) As String

Parámetros

value

Byte

Entero de 8 bits sin signo que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada valor de una Byte matriz en una cadena.

using System;

public class Example
{
   public static void Main()
   {
      byte[] values = { Byte.MinValue, 12, 100, 179, Byte.MaxValue } ;

      foreach (var value in values)
         Console.WriteLine("{0,3} ({1}) --> {2}", value,
                           value.GetType().Name,
                           Convert.ToString(value));
   }
}
// The example displays the following output:
//       0 (Byte) --> 0
//      12 (Byte) --> 12
//     100 (Byte) --> 100
//     179 (Byte) --> 179
//     255 (Byte) --> 255

open System

let values = 
   [| Byte.MinValue; 12uy; 100uy; 179uy; Byte.MaxValue |]

for value in values do
   printfn $"{value,3} ({value.GetType().Name}) --> {Convert.ToString value}"
                     
// The example displays the following output:
//       0 (Byte) --> 0
//      12 (Byte) --> 12
//     100 (Byte) --> 100
//     179 (Byte) --> 179
//     255 (Byte) --> 255

Public Module Example
   Public Sub Main()
      Dim values() As Byte = { Byte.MinValue, 12, 100, 179, Byte.MaxValue }

      For Each value In values
         Console.WriteLine("{0,3} ({1}) --> {2}", value, 
                           value.GetType().Name, 
                           Convert.ToString(value))
      Next                           
   End Sub
End Module
' The example displays the following output:
'       0 (Byte) --> 0
'      12 (Byte) --> 12
'     100 (Byte) --> 100
'     179 (Byte) --> 179
'     255 (Byte) --> 255

let values = [ Byte.MinValue; 12uy; 100uy; 179uy; Byte.MaxValue ]
for value in values do
    printfn "% 4i (%s) --> %s" value (value.GetType().Name) (Convert.ToString value)
// The example displays the following output:
//       0 (Byte) --> 0
//      12 (Byte) --> 12
//     100 (Byte) --> 100
//     179 (Byte) --> 179
//     255 (Byte) --> 255

Comentarios

Esta implementación es idéntica a Byte.ToString().

ToString(Char)

Source:

Convert.cs

Convierte el valor del carácter Unicode especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(char value);

public static string ToString (char value);

static member ToString : char -> string

Public Shared Function ToString (value As Char) As String

Parámetros

value

Char

Carácter Unicode que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte un Char objeto en .String

public:
   void ConvertStringChar( String^ stringVal )
   {
      Char charVal = 'a';
      
      // A String must be one character long to convert to char.
      try
      {
         charVal = System::Convert::ToChar( stringVal );
         System::Console::WriteLine( " {0} as a char is {1}",
            stringVal, charVal );
      }
      catch ( System::FormatException^ ) 
      {
         System::Console::WriteLine(
            "The String is longer than one character." );
      }
      catch ( System::ArgumentNullException^ ) 
      {
         System::Console::WriteLine( "The String is 0." );
      }
      
      // A char to String conversion will always succeed.
      stringVal = System::Convert::ToString( charVal );
      System::Console::WriteLine( "The character as a String is {0}",
         stringVal );
   }

public void ConvertStringChar(string stringVal) {
    char charVal = 'a';

    // A string must be one character long to convert to char.
    try {
        charVal = System.Convert.ToChar(stringVal);
        System.Console.WriteLine("{0} as a char is {1}",
            stringVal, charVal);
    }
    catch (System.FormatException) {
        System.Console.WriteLine(
            "The string is longer than one character.");
    }
    catch (System.ArgumentNullException) {
        System.Console.WriteLine("The string is null.");
    }

    // A char to string conversion will always succeed.
    stringVal = System.Convert.ToString(charVal);
    System.Console.WriteLine("The character as a string is {0}",
            stringVal);
}

let convertStringChar (stringVal: string) =
    let charVal = 'a'

    // A string must be one character long to convert to char.
    try
        let charVal = Convert.ToChar stringVal
        printfn $"{stringVal} as a char is {charVal}"
    with
    | :? FormatException ->
        printfn "The string is longer than one character."
    | :? ArgumentNullException ->
        printfn "The string is null."

    // A char to string conversion will always succeed.
    let stringVal = Convert.ToString charVal
    printfn $"The character as a string is {stringVal}"

Public Sub ConvertStringChar(ByVal stringVal As String)
    Dim charVal As Char = "a"c

    ' A string must be one character long to convert to char.
    Try
        charVal = System.Convert.ToChar(stringVal)
        System.Console.WriteLine("{0} as a char is {1}", _
                                  stringVal, charVal)
    Catch exception As System.FormatException
        System.Console.WriteLine( _
         "The string is longer than one character.")
    Catch exception As System.ArgumentNullException
        System.Console.WriteLine("The string is null.")
    End Try

    ' A char to string conversion will always succeed.
    stringVal = System.Convert.ToString(charVal)
    System.Console.WriteLine("The character as a string is {0}", _
                              stringVal)
End Sub

Comentarios

Esta implementación es idéntica a Char.ToString.

ToString(DateTime)

Source:

Convert.cs

Convierte el valor de la estructura DateTime especificada en su representación de cadena equivalente.

public:
 static System::String ^ ToString(DateTime value);

public static string ToString (DateTime value);

static member ToString : DateTime -> string

Public Shared Function ToString (value As DateTime) As String

Parámetros

value

DateTime

Valor de fecha y hora que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de un DateTime valor en un String valor .

DateTime[] dates = { new DateTime(2009, 7, 14),
                     new DateTime(1, 1, 1, 18, 32, 0),
                     new DateTime(2009, 2, 12, 7, 16, 0) };
string result;

foreach (DateTime dateValue in dates)
{
   result = Convert.ToString(dateValue);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        dateValue.GetType().Name, dateValue,
                        result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the DateTime value 7/14/2009 12:00:00 AM to a String value 7/14/2009 12:00:00 AM.
//    Converted the DateTime value 1/1/0001 06:32:00 PM to a String value 1/1/0001 06:32:00 PM.
//    Converted the DateTime value 2/12/2009 07:16:00 AM to a String value 2/12/2009 07:16:00 AM.

let dates =
    [| DateTime(2009, 7, 14)
       DateTime(1, 1, 1, 18, 32, 0)
       DateTime(2009, 2, 12, 7, 16, 0) |]

for dateValue in dates do
    let result = Convert.ToString dateValue
    printfn $"Converted the {dateValue.GetType().Name} value {dateValue} to the {result.GetType().Name} value {result}."
// The example displays the following output:
//    Converted the DateTime value 7/14/2009 12:00:00 AM to a String value 7/14/2009 12:00:00 AM.
//    Converted the DateTime value 1/1/0001 06:32:00 PM to a String value 1/1/0001 06:32:00 PM.
//    Converted the DateTime value 2/12/2009 07:16:00 AM to a String value 2/12/2009 07:16:00 AM.

Dim dates() As Date = { #07/14/2009#, #6:32PM#, #02/12/2009 7:16AM#}
Dim result As String

For Each dateValue As Date In dates
   result = Convert.ToString(dateValue)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        dateValue.GetType().Name, dateValue, _
                        result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the DateTime value 7/14/2009 12:00:00 AM to a String value 7/14/2009 12:00:00 AM.
'    Converted the DateTime value 1/1/0001 06:32:00 PM to a String value 1/1/0001 06:32:00 PM.
'    Converted the DateTime value 2/12/2009 07:16:00 AM to a String value 2/12/2009 07:16:00 AM.

Comentarios

Esta implementación es idéntica a DateTime.ToString(). Usa las convenciones de formato de la referencia cultural actual y el especificador de formato "G" para convertir un DateTime valor en su representación de cadena.

ToString(Double)

Source:

Convert.cs

Convierte el valor del número de punto flotante de precisión doble especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(double value);

public static string ToString (double value);

static member ToString : double -> string

Public Shared Function ToString (value As Double) As String

Parámetros

value

Double

Número de punto flotante de precisión doble que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte un Double objeto en .String

public:
   void ConvertDoubleString( double doubleVal )
   {
      String^ stringVal;
      
      // A conversion from Double to String cannot overflow.
      stringVal = System::Convert::ToString( doubleVal );
      System::Console::WriteLine( " {0} as a String is: {1}",
         doubleVal, stringVal );
      try
      {
         doubleVal = System::Convert::ToDouble( stringVal );
         System::Console::WriteLine( " {0} as a double is: {1}",
         stringVal, doubleVal );
      }
      catch ( System::OverflowException^ ) 
      {
         System::Console::WriteLine( "Conversion from String-to-double overflowed." );
      }
      catch ( System::FormatException^ ) 
      {
         System::Console::WriteLine( "The String was not formatted as a double." );
      }
      catch ( System::ArgumentException^ ) 
      {
         System::Console::WriteLine( "The String pointed to null." );
      }
   }

public void ConvertDoubleString(double doubleVal) {
    
    string	stringVal;

    // A conversion from Double to string cannot overflow.
    stringVal = System.Convert.ToString(doubleVal);
    System.Console.WriteLine("{0} as a string is: {1}",
        doubleVal, stringVal);

    try {
        doubleVal = System.Convert.ToDouble(stringVal);
        System.Console.WriteLine("{0} as a double is: {1}",
            stringVal, doubleVal);
    }
    catch (System.OverflowException) {
        System.Console.WriteLine(
            "Conversion from string-to-double overflowed.");
    }
    catch (System.FormatException) {
        System.Console.WriteLine(
            "The string was not formatted as a double.");
    }
    catch (System.ArgumentException) {
        System.Console.WriteLine(
            "The string pointed to null.");
    }
}

let convertDoubleString (doubleVal: float) =
    // A conversion from Double to string cannot overflow.
    let stringVal = Convert.ToString doubleVal
    printfn $"{doubleVal} as a string is: {stringVal}"

    try
        let doubleVal = Convert.ToDouble stringVal
        printfn $"{stringVal} as a double is: {doubleVal}"
    with
    | :? OverflowException ->
        printfn "Conversion from string-to-double overflowed."
    | :? FormatException ->
        printfn "The string was not formatted as a double."
    | :? ArgumentException ->
        printfn "The string pointed to null."

Public Sub ConvertDoubleString(ByVal doubleVal As Double)

    Dim stringVal As String

    ' A conversion from Double to String cannot overflow.       
    stringVal = System.Convert.ToString(doubleVal)
    System.Console.WriteLine("{0} as a String is: {1}", _
                              doubleVal, stringVal)

    Try
        doubleVal = System.Convert.ToDouble(stringVal)
        System.Console.WriteLine("{0} as a Double is: {1}", _
                                  stringVal, doubleVal)
    Catch exception As System.OverflowException
        System.Console.WriteLine( _
            "Overflow in String-to-Double conversion.")
    Catch exception As System.FormatException
        System.Console.WriteLine( _
            "The string is not formatted as a Double.")
    Catch exception As System.ArgumentException
        System.Console.WriteLine("The string is null.")
    End Try

End Sub

Comentarios

Esta implementación es idéntica a Double.ToString().

ToString(Int16)

Source:

Convert.cs

Convierte el valor del entero de 16 bits con signo especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(short value);

public static string ToString (short value);

static member ToString : int16 -> string

Public Shared Function ToString (value As Short) As String

Parámetros

value

Int16

Entero de 16 bits con signo que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de enteros de 16 bits en su representación de cadena equivalente.

short[] numbers = { Int16.MinValue, -138, 0, 19, Int16.MaxValue };
string result;

foreach (short number in numbers)
{
   result = Convert.ToString(number);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the Int16 value -32768 to the String value -32768.
//    Converted the Int16 value -138 to the String value -138.
//    Converted the Int16 value 0 to the String value 0.
//    Converted the Int16 value 19 to the String value 19.
//    Converted the Int16 value 32767 to the String value 32767.

let numbers = [| Int16.MinValue; -138s; 0s; 19s; Int16.MaxValue |]

for number in numbers do
    let result = Convert.ToString number
    printfn $"Converted the {number.GetType().Name} value {number} to the {result.GetType().Name} value {result}."
// The example displays the following output:
//    Converted the Int16 value -32768 to the String value -32768.
//    Converted the Int16 value -138 to the String value -138.
//    Converted the Int16 value 0 to the String value 0.
//    Converted the Int16 value 19 to the String value 19.
//    Converted the Int16 value 32767 to the String value 32767.

Dim numbers() As Short = { Int16.MinValue, -138, 0, 19, Int16.MaxValue }
Dim result As String

For Each number As Short In numbers
   result = Convert.ToString(number)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
Next     
' The example displays the following output:
'    Converted the Int16 value -32768 to the String value -32768.
'    Converted the Int16 value -138 to the String value -138.
'    Converted the Int16 value 0 to the String value 0.
'    Converted the Int16 value 19 to the String value 19.
'    Converted the Int16 value 32767 to the String value 32767.

Comentarios

Esta implementación es idéntica a Int16.ToString().

ToString(Int32)

Source:

Convert.cs

Convierte el valor del entero de 32 bits con signo especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(int value);

public static string ToString (int value);

static member ToString : int -> string

Public Shared Function ToString (value As Integer) As String

Parámetros

value

Int32

Entero de 32 bits con signo que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se compara el ToString(Int32) método con el ToString(UInt16, IFormatProvider) método . Define un objeto personalizado NumberFormatInfo que usa el sting "menos" para representar el signo negativo. Convierte cada elemento de una matriz de enteros en su representación de cadena equivalente mediante el formato predeterminado (las convenciones de formato de la referencia cultural actual) y el proveedor de formato personalizado.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      // Create a NumberFormatInfo object and set its NegativeSigns
      // property to use for integer formatting.
      NumberFormatInfo provider = new NumberFormatInfo();
      provider.NegativeSign = "minus ";

      int[] values = { -20, 0, 100 };

      Console.WriteLine("{0,-8} --> {1,10} {2,10}\n", "Value",
                         CultureInfo.CurrentCulture.Name,
                         "Custom");
      foreach (int value in values)
         Console.WriteLine("{0,-8} --> {1,10} {2,10}",
                           value, Convert.ToString(value),
                           Convert.ToString(value, provider));
      // The example displays output like the following:
      //       Value    -->      en-US     Custom
      //
      //       -20      -->        -20   minus 20
      //       0        -->          0          0
      //       100      -->        100        100
   }
}

open System
open System.Globalization

// Create a NumberFormatInfo object and set its NegativeSigns
// property to use for integer formatting.
let provider = NumberFormatInfo()
provider.NegativeSign <- "minus "

let values = [| -20; 0; 100 |]

printfn $"""{CultureInfo.CurrentCulture.Name,-8} --> {"Value",10} {"Custom",10}\n"""
                    
for value in values do
    printfn $"{value,-8} --> {Convert.ToString value,10} {Convert.ToString(value, provider),10}"
// The example displays output like the following:
//       Value    -->      en-US     Custom
//
//       -20      -->        -20   minus 20
//       0        -->          0          0
//       100      -->        100        100

Imports System.Globalization

Module Example
   Public Sub Main()
      ' Create a NumberFormatInfo object and set its NegativeSigns
      ' property to use for integer formatting.
      Dim provider As New NumberFormatInfo()
      provider.NegativeSign = "minus "

      Dim values() As Integer = { -20, 0, 100 }

      Console.WriteLine("{0,-8} --> {1,10} {2,10}", "Value",
                         CultureInfo.CurrentCulture.Name,
                         "Custom")
      Console.WriteLine()
      For Each value As Integer In values
         Console.WriteLine("{0,-8} --> {1,10} {2,10}",
                           value, Convert.ToString(value),
                           Convert.ToString(value, provider))
      Next
   End Sub
End Module
' The example displays output like the following:
'       Value    -->      en-US     Custom
'
'       -20      -->        -20   minus 20
'       0        -->          0          0
'       100      -->        100        100

Comentarios

Esta implementación es idéntica a Int32.ToString(). Da formato value mediante las convenciones de formato de la referencia cultural actual.

ToString(Decimal)

Source:

Convert.cs

Convierte el valor de un número decimal especificado en su representación de cadena equivalente.

public:
 static System::String ^ ToString(System::Decimal value);

public static string ToString (decimal value);

static member ToString : decimal -> string

Public Shared Function ToString (value As Decimal) As String

Parámetros

value

Decimal

Número decimal que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte un Decimal objeto en .String

public:
   void ConvertStringDecimal( String^ stringVal )
   {
      Decimal decimalVal = 0;

      try
      {
         decimalVal = System::Convert::ToDecimal( stringVal );
         System::Console::WriteLine( "The String as a decimal is {0}.",
         decimalVal );
      }
      catch ( System::OverflowException^ ) 
      {
         System::Console::WriteLine(
            "The conversion from String to decimal overflowed." );
      }
      catch ( System::FormatException^ ) 
      {
         System::Console::WriteLine(
            "The String is not formatted as a decimal." );
      }
      catch ( System::ArgumentNullException^ ) 
      {
         System::Console::WriteLine( "The String is 0." );
      }
      
      // Decimal to String conversion will not overflow.
      stringVal = System::Convert::ToString( decimalVal );
      System::Console::WriteLine(
         "The decimal as a String is {0}.", stringVal );
   }

public void ConvertStringDecimal(string stringVal) {
    decimal decimalVal = 0;
    
    try {
        decimalVal = System.Convert.ToDecimal(stringVal);
        System.Console.WriteLine(
            "The string as a decimal is {0}.", decimalVal);
    }
    catch (System.OverflowException){
        System.Console.WriteLine(
            "The conversion from string to decimal overflowed.");
    }
    catch (System.FormatException) {
        System.Console.WriteLine(
            "The string is not formatted as a decimal.");
    }
    catch (System.ArgumentNullException) {
        System.Console.WriteLine(
            "The string is null.");
    }

    // Decimal to string conversion will not overflow.
    stringVal = System.Convert.ToString(decimalVal);
    System.Console.WriteLine(
        "The decimal as a string is {0}.", stringVal);
}

let convertStringDecimal (stringVal: string) =
    let decimalVal = 0m

    try
        let decimalVal = Convert.ToDecimal(stringVal)
        printfn $"The string as a decimal is {decimalVal}."
    with
    | :? OverflowException ->
        printfn "The conversion from string to decimal overflowed."
    | :? FormatException ->
        printfn "The string is not formatted as a decimal."
    | :? ArgumentNullException ->
        printfn "The string is null."

    // Decimal to string conversion will not overflow.
    let stringVal = Convert.ToString decimalVal
    printfn $"The decimal as a string is {stringVal}."

Public Sub ConvertStringDecimal(ByVal stringVal As String)
    Dim decimalVal As Decimal = 0

    Try
        decimalVal = System.Convert.ToDecimal(stringVal)
        System.Console.WriteLine("The string as a decimal is {0}.", _
                                  decimalVal)
    Catch exception As System.OverflowException
        System.Console.WriteLine( _
            "Overflow in string-to-decimal conversion.")
    Catch exception As System.FormatException
        System.Console.WriteLine( _
            "The string is not formatted as a decimal.")
    Catch exception As System.ArgumentException
        System.Console.WriteLine("The string is null.")
    End Try

    ' Decimal to string conversion will not overflow.
    stringVal = System.Convert.ToString(decimalVal)
    System.Console.WriteLine("The decimal as a string is {0}.", _
                              stringVal)
End Sub

Comentarios

Esta implementación es idéntica a Decimal.ToString().

ToString(Object)

Source:

Convert.cs

Convierte el valor del objeto especificado en su representación de cadena equivalente.

public:
 static System::String ^ ToString(System::Object ^ value);

public static string? ToString (object? value);

static member ToString : obj -> string

Public Shared Function ToString (value As Object) As String

Parámetros

value

Object

Objeto que proporciona el valor que se va a convertir, o null.

Devoluciones

String

Representación de cadena de value o Empty si value es null.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de objetos en su representación de cadena equivalente.

object[] values = { false, 12.63m, new DateTime(2009, 6, 1, 6, 32, 15), 16.09e-12,
                    'Z', 15.15322, SByte.MinValue, Int32.MaxValue };
string result;

foreach (object value in values)
{
   result = Convert.ToString(value);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the Boolean value False to the String value False.
//    Converted the Decimal value 12.63 to the String value 12.63.
//    Converted the DateTime value 6/1/2009 06:32:15 AM to the String value 6/1/2009 06:32:15 AM.
//    Converted the Double value 1.609E-11 to the String value 1.609E-11.
//    Converted the Char value Z to the String value Z.
//    Converted the Double value 15.15322 to the String value 15.15322.
//    Converted the SByte value -128 to the String value -128.
//    Converted the Int32 value 2147483647 to the String value 2147483647.

let values: obj[] =
    [| false; 12.63m; DateTime(2009, 6, 1, 6, 32, 15)
       16.09e-12; 'Z'; 15.15322; SByte.MinValue; Int32.MaxValue |]

for value in values do
    let result = Convert.ToString value
    printfn $"Converted the {value.GetType().Name} value {value} to the {result.GetType().Name} value {result}."
// The example displays the following output:
//    Converted the Boolean value False to the String value False.
//    Converted the Decimal value 12.63 to the String value 12.63.
//    Converted the DateTime value 6/1/2009 06:32:15 AM to the String value 6/1/2009 06:32:15 AM.
//    Converted the Double value 1.609E-11 to the String value 1.609E-11.
//    Converted the Char value Z to the String value Z.
//    Converted the Double value 15.15322 to the String value 15.15322.
//    Converted the SByte value -128 to the String value -128.
//    Converted the Int32 value 2147483647 to the String value 2147483647.

Dim values() As Object = { False, 12.63d, #06/01/2009 6:32:15#, 16.09e-12, _
                           "Z"c, 15.15322, SByte.MinValue, Int32.MaxValue}
Dim result As String

For Each value As Object In values
   result = Convert.ToString(value)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the Boolean value False to the String value False.
'    Converted the Decimal value 12.63 to the String value 12.63.
'    Converted the DateTime value 6/1/2009 06:32:15 AM to the String value 6/1/2009 06:32:15 AM.
'    Converted the Double value 1.609E-11 to the String value 1.609E-11.
'    Converted the Char value Z to the String value Z.
'    Converted the Double value 15.15322 to the String value 15.15322.
'    Converted the SByte value -128 to the String value -128.
'    Converted the Int32 value 2147483647 to the String value 2147483647.

Comentarios

Para convertir value en su representación de cadena, el método intenta llamar a la IConvertible.ToString implementación de value. Si value no implementa la IConvertible interfaz , el método intenta llamar a la IFormattable.ToString implementación de value. Si value no implementa la IFormattable interfaz , el método llama al ToString método del tipo subyacente de value.

ToString(SByte)

Source:

Convert.cs

Importante

Esta API no es conforme a CLS.

Convierte el valor del entero de 8 bits con signo especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(System::SByte value);

[System.CLSCompliant(false)]
public static string ToString (sbyte value);

[<System.CLSCompliant(false)>]
static member ToString : sbyte -> string

Public Shared Function ToString (value As SByte) As String

Parámetros

value

SByte

Entero de 8 bits con signo que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Atributos

CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de bytes con signo en su representación de cadena equivalente.

sbyte[] numbers = { SByte.MinValue, -12, 0, 16, SByte.MaxValue };
string result;

foreach (sbyte number in numbers)
{
   result = Convert.ToString(number);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the SByte value -128 to the String value -128.
//    Converted the SByte value -12 to the String value -12.
//    Converted the SByte value 0 to the String value 0.
//    Converted the SByte value 16 to the String value 16.
//    Converted the SByte value 127 to the String value 127.

let numbers = [| SByte.MinValue; -12y; 0y; 16y; SByte.MaxValue |]

for number in numbers do
    let result = Convert.ToString number
    printfn $"Converted the {number.GetType().Name} value {number} to the {result.GetType().Name} value {result}."
// The example displays the following output:
//    Converted the SByte value -128 to the String value -128.
//    Converted the SByte value -12 to the String value -12.
//    Converted the SByte value 0 to the String value 0.
//    Converted the SByte value 16 to the String value 16.
//    Converted the SByte value 127 to the String value 127.

Dim numbers() As SByte = { SByte.MinValue, -12, 0, 16, SByte.MaxValue }
Dim result As String

For Each number As SByte In numbers
   result = Convert.ToString(number)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the SByte value -128 to the String value -128.
'    Converted the SByte value -12 to the String value -12.
'    Converted the SByte value 0 to the String value 0.
'    Converted the SByte value 16 to the String value 16.
'    Converted the SByte value 127 to the String value 127.

Comentarios

Esta implementación es idéntica a SByte.ToString().

ToString(Single)

Source:

Convert.cs

Convierte el valor del número de punto flotante de precisión sencilla especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(float value);

public static string ToString (float value);

static member ToString : single -> string

Public Shared Function ToString (value As Single) As String

Parámetros

value

Single

Número de punto flotante de precisión sencilla que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de Single valores en su representación de cadena equivalente.

float[] numbers = { Single.MinValue, -1011.351f, -17.45f, -3e-16f,
                    0f, 4.56e-12f, 16.0001f, 10345.1221f, Single.MaxValue };
string result;

foreach (float number in numbers)
{
   result = Convert.ToString(number);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the Single value -3.402823E+38 to the String value -3.402823E+38.
//    Converted the Single value -1011.351 to the String value -1011.351.
//    Converted the Single value -17.45 to the String value -17.45.
//    Converted the Single value -3E-16 to the String value -3E-16.
//    Converted the Single value 0 to the String value 0.
//    Converted the Single value 4.56E-12 to the String value 4.56E-12.
//    Converted the Single value 16.0001 to the String value 16.0001.
//    Converted the Single value 10345.12 to the String value 10345.12.
//    Converted the Single value 3.402823E+38 to the String value 3.402823E+38.

let numbers = 
    [| Single.MinValue; -1011.351f; -17.45f; -3e-16f; 0f; 4.56e-12f; 16.0001f; 10345.1221f; Single.MaxValue |]

for number in numbers do
    let result = Convert.ToString number
    printfn $"Converted the {number.GetType().Name} value {number} to the {result.GetType().Name} value {result}."
// The example displays the following output:
//    Converted the Single value -3.402823E+38 to the String value -3.402823E+38.
//    Converted the Single value -1011.351 to the String value -1011.351.
//    Converted the Single value -17.45 to the String value -17.45.
//    Converted the Single value -3E-16 to the String value -3E-16.
//    Converted the Single value 0 to the String value 0.
//    Converted the Single value 4.56E-12 to the String value 4.56E-12.
//    Converted the Single value 16.0001 to the String value 16.0001.
//    Converted the Single value 10345.12 to the String value 10345.12.
//    Converted the Single value 3.402823E+38 to the String value 3.402823E+38.

Dim numbers() As Single = { Single.MinValue, -1011.351, -17.45, -3e-16, _
                            0, 4.56e-12, 16.0001, 10345.1221, Single.MaxValue }
Dim result As String

For Each number As Single In numbers
   result = Convert.ToString(number)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
Next                            
' The example displays the following output:
'    Converted the Single value -3.402823E+38 to the String value -3.402823E+38.
'    Converted the Single value -1011.351 to the String value -1011.351.
'    Converted the Single value -17.45 to the String value -17.45.
'    Converted the Single value -3E-16 to the String value -3E-16.
'    Converted the Single value 0 to the String value 0.
'    Converted the Single value 4.56E-12 to the String value 4.56E-12.
'    Converted the Single value 16.0001 to the String value 16.0001.
'    Converted the Single value 10345.12 to the String value 10345.12.
'    Converted the Single value 3.402823E+38 to the String value 3.402823E+38.

Comentarios

Esta implementación es idéntica a Single.ToString().

ToString(String)

Source:

Convert.cs

Devuelve la instancia de la cadena especificada; no se efectúa una conversión real.

public:
 static System::String ^ ToString(System::String ^ value);

public static string? ToString (string? value);

static member ToString : string -> string

Public Shared Function ToString (value As String) As String

Parámetros

value

String

Cadena que se va a devolver.

Devoluciones

String

value se devuelve sin cambios.

Ejemplos

En el ToString(String) ejemplo siguiente se pasa una cadena al método y se llama al Object.ReferenceEquals método para confirmar que el método devuelve la cadena original. En el ejemplo también se llama al String.IsInterned método para asegurarse de que las dos cadenas no son idénticas porque la cadena original está internada.

using System;

public class Example
{
   public static void Main()
   {
      String article = "An";
      String noun = "apple";
      String str1 = String.Format("{0} {1}", article, noun);
      String str2 = Convert.ToString(str1);

      Console.WriteLine("str1 is interned: {0}",
                        ! (String.IsInterned(str1) == null));
      Console.WriteLine("str1 and str2 are the same reference: {0}",
                        Object.ReferenceEquals(str1, str2));
   }
}
// The example displays the following output:
//       str1 is interned: False
//       str1 and str2 are the same reference: True

open System

let article = "An"
let noun = "apple"
let str1 = $"{article} {noun}"
let str2 = Convert.ToString str1

printfn $"str1 is interned: {String.IsInterned str1 <> null}"
                  
printfn $"str1 and str2 are the same reference: {Object.ReferenceEquals(str1, str2)}"
// The example displays the following output:
//       str1 is interned: False
//       str1 and str2 are the same reference: True

Module Example
   Public Sub Main()
      Dim article As String = "An"
      Dim noun As String = "apple"
      Dim str1 As String = String.Format("{0} {1}", article, noun)
      Dim str2 As String = Convert.ToString(str1)

      Console.WriteLine("str1 is interned: {0}",
                        Not String.IsInterned(str1) Is Nothing)
      Console.WriteLine("str1 and str2 are the same reference: {0}",
                        Object.ReferenceEquals(str1, str2))
   End Sub
End Module
' The example displays the following output:
'       str1 is interned: False
'       str1 and str2 are the same reference: True

ToString(UInt16)

Source:

Convert.cs

Importante

Esta API no es conforme a CLS.

Convierte el valor del entero de 16 bits sin signo especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(System::UInt16 value);

[System.CLSCompliant(false)]
public static string ToString (ushort value);

[<System.CLSCompliant(false)>]
static member ToString : uint16 -> string

Public Shared Function ToString (value As UShort) As String

Parámetros

value

UInt16

Entero de 16 bits sin signo que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Atributos

CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de valores enteros de 16 bits sin signo en su representación de cadena equivalente.

ushort[] numbers = { UInt16.MinValue, 103, 1045, UInt16.MaxValue };
string result;

foreach (ushort number in numbers)
{
   result = Convert.ToString(number);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the UInt16 value 0 to the String value 0.
//    Converted the UInt16 value 103 to the String value 103.
//    Converted the UInt16 value 1045 to the String value 1045.
//    Converted the UInt16 value 65535 to the String value 65535.

let numbers = [| UInt16.MinValue; 103us; 1045us; UInt16.MaxValue |]

for number in numbers do
    let result = Convert.ToString number
    printfn $"Converted the {number.GetType().Name} value {number} to the {result.GetType().Name} value {result}."
// The example displays the following output:
//    Converted the UInt16 value 0 to the String value 0.
//    Converted the UInt16 value 103 to the String value 103.
//    Converted the UInt16 value 1045 to the String value 1045.
//    Converted the UInt16 value 65535 to the String value 65535.

Dim numbers() As UShort = { UInt16.MinValue, 103, 1045, UInt16.MaxValue }
Dim result As String

For Each number As UShort In numbers
   result = Convert.ToString(number)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the UInt16 value 0 to the String value 0.
'    Converted the UInt16 value 103 to the String value 103.
'    Converted the UInt16 value 1045 to the String value 1045.
'    Converted the UInt16 value 65535 to the String value 65535.

Comentarios

Esta implementación es idéntica a UInt16.ToString().

ToString(UInt32)

Source:

Convert.cs

Importante

Esta API no es conforme a CLS.

Convierte el valor del entero de 32 bits sin signo especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(System::UInt32 value);

[System.CLSCompliant(false)]
public static string ToString (uint value);

[<System.CLSCompliant(false)>]
static member ToString : uint32 -> string

Public Shared Function ToString (value As UInteger) As String

Parámetros

value

UInt32

Entero de 32 bits sin signo que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Atributos

CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de enteros sin signo en su representación de cadena equivalente.

uint[] numbers = { UInt32.MinValue, 103, 1045, 119543, UInt32.MaxValue };
string result;

foreach (uint number in numbers)
{
   result = Convert.ToString(number);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the UInt32 value 0 to the String value 0.
//    Converted the UInt32 value 103 to the String value 103.
//    Converted the UInt32 value 1045 to the String value 1045.
//    Converted the UInt32 value 119543 to the String value 119543.
//    Converted the UInt32 value 4294967295 to the String value 4294967295.

let numbers = [| UInt32.MinValue; 103u; 1045u; 119543u; UInt32.MaxValue |]

for number in numbers do
    let result = Convert.ToString number
    printfn $"Converted the {number.GetType().Name} value {number} to the {result.GetType().Name} value {result}."
// The example displays the following output:
//    Converted the UInt32 value 0 to the String value 0.
//    Converted the UInt32 value 103 to the String value 103.
//    Converted the UInt32 value 1045 to the String value 1045.
//    Converted the UInt32 value 119543 to the String value 119543.
//    Converted the UInt32 value 4294967295 to the String value 4294967295.

Dim numbers() As UInteger = { UInt32.MinValue, 103, 1045, 119543, UInt32.MaxValue }
Dim result As String

For Each number As UInteger In numbers
   result = Convert.ToString(number)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the UInt32 value 0 to the String value 0.
'    Converted the UInt32 value 103 to the String value 103.
'    Converted the UInt32 value 1045 to the String value 1045.
'    Converted the UInt32 value 119543 to the String value 119543.
'    Converted the UInt32 value 4294967295 to the String value 4294967295.

Comentarios

Esta implementación es idéntica a UInt32.ToString().

ToString(UInt64)

Source:

Convert.cs

Importante

Esta API no es conforme a CLS.

Convierte el valor del entero de 64 bits sin signo especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(System::UInt64 value);

[System.CLSCompliant(false)]
public static string ToString (ulong value);

[<System.CLSCompliant(false)>]
static member ToString : uint64 -> string

Public Shared Function ToString (value As ULong) As String

Parámetros

value

UInt64

Entero de 64 bits sin signo que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Atributos

CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de enteros largos sin signo en su representación de cadena equivalente.

ulong[] numbers = { UInt64.MinValue, 1031, 189045, UInt64.MaxValue };
string result;

foreach (ulong number in numbers)
{
   result = Convert.ToString(number);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the UInt64 value 0 to the String value 0.
//    Converted the UInt64 value 1031 to the String value 1031.
//    Converted the UInt64 value 189045 to the String value 189045.
//    Converted the UInt64 value 18446744073709551615 to the String value 18446744073709551615.

let numbers = [| UInt64.MinValue; 1031uL; 189045uL; UInt64.MaxValue |]

for number in numbers do
    let result = Convert.ToString number
    printfn $"Converted the {number.GetType().Name} value {number} to the {result.GetType().Name} value {result}."
// The example displays the following output:
//    Converted the UInt64 value 0 to the String value 0.
//    Converted the UInt64 value 1031 to the String value 1031.
//    Converted the UInt64 value 189045 to the String value 189045.
//    Converted the UInt64 value 18446744073709551615 to the String value 18446744073709551615.

Dim numbers() As ULong = { UInt64.MinValue, 1031, 189045, UInt64.MaxValue }
Dim result As String

For Each number As ULong In numbers
   result = Convert.ToString(number)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the UInt64 value 0 to the String value 0.
'    Converted the UInt64 value 1031 to the String value 1031.
'    Converted the UInt64 value 189045 to the String value 189045.
'    Converted the UInt64 value 18446744073709551615 to the String value 18446744073709551615.

Comentarios

Esta implementación es idéntica a UInt64.ToString().

ToString(Int64)

Source:

Convert.cs

Convierte el valor del entero de 64 bits con signo especificado en la representación de cadena equivalente.

public:
 static System::String ^ ToString(long value);

public static string ToString (long value);

static member ToString : int64 -> string

Public Shared Function ToString (value As Long) As String

Parámetros

value

Int64

Entero de 64 bits con signo que se va a convertir.

Devoluciones

String

Representación de cadena de value.

Ejemplos

En el ejemplo siguiente se convierte cada elemento de una matriz de enteros largo en su representación de cadena equivalente.

// Create a NumberFormatInfo object and set several of its
// properties that control default integer formatting.
System.Globalization.NumberFormatInfo provider = new System.Globalization.NumberFormatInfo();
provider.NegativeSign = "minus ";

long[] values = { -200, 0, 1000 };

foreach (long value in values)
   Console.WriteLine("{0,-6}  -->  {1,10}",
                     value, Convert.ToString(value, provider));
// The example displays the following output:
//       -200    -->   minus 200
//       0       -->           0
//       1000    -->        1000

// Create a NumberFormatInfo object and set several of its
// properties that control default integer formatting.
let provider = System.Globalization.NumberFormatInfo()
provider.NegativeSign <- "minus "

let values = [| -200; 0; 1000 |]

for value in values do
    printfn $"{value,-6}  -->  {Convert.ToString(value, provider),10}"
// The example displays the following output:
//       -200    -->   minus 200
//       0       -->           0
//       1000    -->        1000

' Create a NumberFormatInfo object and set several of its
' properties that control default integer formatting.
Dim provider As New System.Globalization.NumberFormatInfo()
provider.NegativeSign = "minus "

Dim values() As Long = { -200, 0, 1000 }

For Each value As Long In values
   Console.WriteLine("{0,-6}  -->  {1,10}", _
                     value, Convert.ToString(value, provider))
Next
' The example displays the following output:
'       -200    -->   minus 200
'       0       -->           0
'       1000    -->        1000

Comentarios

Esta implementación es idéntica a Int64.ToString().