UInt64.ToString Method

Reference

Definition

Namespace:: System

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Converts the numeric value of this instance to its equivalent string representation.

Overloads

ToString()	Converts the numeric value of this instance to its equivalent string representation.
ToString(IFormatProvider)	Converts the numeric value of this instance to its equivalent string representation using the specified culture-specific format information.
ToString(String)	Converts the numeric value of this instance to its equivalent string representation using the specified format.
ToString(String, IFormatProvider)	Converts the numeric value of this instance to its equivalent string representation using the specified format and culture-specific format information.

ToString()

Source:: UInt64.cs

Source:: UInt64.cs

Source:: UInt64.cs

Converts the numeric value of this instance to its equivalent string representation.

public:
 override System::String ^ ToString();

public override string ToString ();

override this.ToString : unit -> string

Public Overrides Function ToString () As String

Returns

String

The string representation of the value of this instance, consisting of a sequence of digits ranging from 0 to 9, without a sign or leading zeroes.

Examples

The following example displays a UInt64 value by using the default ToString() method. It also displays the string representations of the UInt64 value that results from using some standard format specifiers. The examples are displayed using the formatting conventions of the en-US culture.

using System;

public class Example
{
   public static void Main()
   {
      ulong value = 163249057;
      // Display value using default ToString method.
      Console.WriteLine(value.ToString());      
      Console.WriteLine();
      
      // Define an array of format specifiers.
      string[] formats = { "G", "C", "D", "F", "N", "X" };
      // Display value using the standard format specifiers.
      foreach (string format in formats)
         Console.WriteLine("{0} format specifier: {1,16}", 
                           format, value.ToString(format));         
   }
}
// The example displays the following output:
//       163249057
//       
//       G format specifier:        163249057
//       C format specifier:  $163,249,057.00
//       D format specifier:        163249057
//       F format specifier:     163249057.00
//       N format specifier:   163,249,057.00
//       X format specifier:          9BAFBA1

let value = 163249057uL
// Display value using default ToString method.
printfn $"{value.ToString()}\n"      

// Define an array of format specifiers.
let formats = [| "G"; "C"; "D"; "F"; "N"; "X" |]
// Display value using the standard format specifiers.
for format in formats do
    printfn $"{format} format specifier: {value.ToString format,16}" 
// The example displays the following output:
//       163249057
//       
//       G format specifier:        163249057
//       C format specifier:  $163,249,057.00
//       D format specifier:        163249057
//       F format specifier:     163249057.00
//       N format specifier:   163,249,057.00
//       X format specifier:          9BAFBA1

Module Example
   Public Sub Main()
      Dim value As ULong = 163249057
      ' Display value using default ToString method.
      Console.WriteLine(value.ToString())            
      Console.WriteLine()
      
      ' Define an array of format specifiers.
      Dim formats() As String = { "G", "C", "D", "F", "N", "X" }
      ' Display value using the standard format specifiers.
      For Each format As String In formats
         Console.WriteLine("{0} format specifier: {1,16}", _
                           format, value.ToString(format))         
      Next
   End Sub
End Module
' The example displays the following output:
'       163249057
'       
'       G format specifier:        163249057
'       C format specifier:  $163,249,057.00
'       D format specifier:        163249057
'       F format specifier:     163249057.00
'       N format specifier:   163,249,057.00
'       X format specifier:          9BAFBA1

Remarks

The ToString() method formats a UInt64 value in the default ("G", or general) format by using the NumberFormatInfo object of the current culture. If you want to specify a different format or culture, use the other overloads of the ToString method, as follows:

To use format	For culture	Use the overload
Default ("G") format	A specific culture	ToString(IFormatProvider)
A specific format	Default (current) culture	ToString(String)
A specific format	A specific culture	ToString(String, IFormatProvider)

Applies to

ToString(IFormatProvider)

Source:: UInt64.cs

Source:: UInt64.cs

Source:: UInt64.cs

Converts the numeric value of this instance to its equivalent string representation using the specified culture-specific format information.

public:
 virtual System::String ^ ToString(IFormatProvider ^ provider);

public:
 System::String ^ ToString(IFormatProvider ^ provider);

public string ToString (IFormatProvider provider);

public string ToString (IFormatProvider? provider);

override this.ToString : IFormatProvider -> string

Public Function ToString (provider As IFormatProvider) As String

Parameters

provider: IFormatProvider

An object that supplies culture-specific formatting information.

Returns

String

The string representation of the value of this instance, consisting of a sequence of digits ranging from 0 to 9, without a sign or leading zeros.

Implements

ToString(IFormatProvider)

Examples

The following example formats a 64-bit signed integer value by using several format providers, including one for the invariant culture. The output from the example illustrates that the formatted string returned by the ToString(IFormatProvider) method is the same regardless of the format provider.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      // Define an array of CultureInfo objects.
      CultureInfo[] ci = { new CultureInfo("en-US"), 
                           new CultureInfo("fr-FR"), 
                           CultureInfo.InvariantCulture }; 
      ulong value = 18709243;
      Console.WriteLine("  {0,12}   {1,12}   {2,12}", 
                        GetName(ci[0]), GetName(ci[1]), GetName(ci[2])); 
      Console.WriteLine("  {0,12}   {1,12}   {2,12}", 
                        value.ToString(ci[0]), value.ToString(ci[1]), value.ToString(ci[2]));   
   }

   private static string GetName(CultureInfo ci)
   {
      if (ci.Equals(CultureInfo.InvariantCulture))
         return "Invariant";
      else
         return ci.Name;         
   }
}
// The example displays the following output:
//             en-US          fr-FR      Invariant
//          18709243       18709243       18709243

open System.Globalization

let getName (ci: CultureInfo) =
    if ci.Equals CultureInfo.InvariantCulture then "Invariant"
    else ci.Name

// Define an array of CultureInfo objects.
let ci = 
    [| CultureInfo "en-US" 
       CultureInfo "fr-FR" 
       CultureInfo.InvariantCulture |]

let value = 18709243uL

printfn $"  {getName ci[0],12}   {getName ci[1],12}   {getName ci[2],12}"
printfn $"  {value.ToString ci[0],12}   {value.ToString ci[1],12}   {value.ToString ci[2],12}" 
// The example displays the following output:
//             en-US          fr-FR      Invariant
//          18709243       18709243       18709243

Imports System.Globalization

Module Example
   Public Sub Main()
      ' Define an array of CultureInfo objects.
      Dim ci() As CultureInfo = { New CultureInfo("en-US"), _
                                  New CultureInfo("fr-FR"), _
                                  CultureInfo.InvariantCulture } 
      Dim value As ULong = 18709243
      Console.WriteLine("  {0,12}   {1,12}   {2,12}", _
                        GetName(ci(0)), GetName(ci(1)), GetName(ci(2))) 
      Console.WriteLine("  {0,12}   {1,12}   {2,12}", _
                        value.ToString(ci(0)), value.ToString(ci(1)), value.ToString(ci(2)))            
      
   End Sub
   
   Private Function GetName(ci As CultureInfo) As String
      If ci.Equals(CultureInfo.InvariantCulture) Then
         Return "Invariant"
      Else
         Return ci.Name
      End If   
   End Function
End Module
' The example displays the following output:
'             en-US          fr-FR      Invariant
'          18709243       18709243       18709243

Remarks

The ToString(IFormatProvider) method formats a UInt64 value in the default ("G", or general) format by using the NumberFormatInfo object of a specified culture. If you want to specify a different format or the current culture, use the other overloads of the ToString method, as follows:

To use format	For culture	Use the overload
Default ("G") format	Default (current) culture	ToString()
A specific format	Default (current) culture	ToString(String)
A specific format	A specific culture	ToString(String, IFormatProvider)

The provider parameter is an IFormatProvider implementation. Its GetFormat method returns a NumberFormatInfo object that provides culture-specific formatting information. However, none of the properties of the NumberFormatInfo are used when formatting with the general numeric format specifier ("G").

Applies to

ToString(String)

Source:: UInt64.cs

Source:: UInt64.cs

Source:: UInt64.cs

Converts the numeric value of this instance to its equivalent string representation using the specified format.

public:
 System::String ^ ToString(System::String ^ format);

public string ToString (string format);

public string ToString (string? format);

override this.ToString : string -> string

Public Function ToString (format As String) As String

Parameters

format: String

A numeric format string.

Returns

String

The string representation of the value of this instance as specified by format.

Exceptions

FormatException

The format parameter is invalid.

Examples

The following example displays a 64-bit unsigned integer value by using each standard format string and some custom format strings.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      ulong value = 217960834;
      string[] specifiers = { "G", "C", "D3", "E2", "e3", "F", 
                              "N", "P", "X", "000000.0", "#.0", 
                              "00000000;(0);**Zero**" };
      
      foreach (string specifier in specifiers)
         Console.WriteLine("{0}: {1}", specifier, value.ToString(specifier));
   }
}
// The example displays the following output:
//       G: 217960834
//       C: $217,960,834.00
//       D3: 217960834
//       E2: 2.18E+008
//       e3: 2.180e+008
//       F: 217960834.00
//       N: 217,960,834.00
//       P: 21,796,083,400.00 %
//       X: CFDD182
//       000000.0: 217960834.0
//       #.0: 217960834.0
//       00000000;(0);**Zero**: 217960834

let value = 217960834uL
let specifiers = 
    [| "G"; "C"; "D3"; "E2"; "e3"; "F" 
       "N"; "P"; "X"; "000000.0"; "#.0" 
       "00000000(0)**Zero**" |]
      
for specifier in specifiers do
    printfn $"{specifier}: {value.ToString specifier}"
// The example displays the following output:
//       G: 217960834
//       C: $217,960,834.00
//       D3: 217960834
//       E2: 2.18E+008
//       e3: 2.180e+008
//       F: 217960834.00
//       N: 217,960,834.00
//       P: 21,796,083,400.00 %
//       X: CFDD182
//       000000.0: 217960834.0
//       #.0: 217960834.0
//       00000000(0)**Zero**: 217960834

Imports System.Globalization

Module Example
   Public Sub Main()
      Dim value As ULong = 217960834 
      Dim specifiers() As String = { "G", "C", "D3", "E2", "e3", "F", _
                                     "N", "P", "X", "000000.0", "#.0", _
                                     "00000000;(0);**Zero**" }
      
      For Each specifier As String In specifiers
         Console.WriteLine("{0}: {1}", specifier, value.ToString(specifier))
      Next
   End Sub
End Module
' The example displays the following output:
'       G: 217960834
'       C: $217,960,834.00
'       D3: 217960834
'       E2: 2.18E+008
'       e3: 2.180e+008
'       F: 217960834.00
'       N: 217,960,834.00
'       P: 21,796,083,400.00 %
'       X: CFDD182
'       000000.0: 217960834.0
'       #.0: 217960834.0
'       00000000;(0);**Zero**: 217960834

Remarks

The ToString(String) method formats a UInt64 value in a specified format by using a NumberFormatInfo object that represents the conventions of the current culture. If you want to use the default ("G", or general) format or specify a different culture, use the other overloads of the ToString method, as follows:

To use format	For culture	Use the overload
Default ("G") format	Default (current) culture	ToString()
Default ("G") format	A specific culture	ToString(IFormatProvider)
A specific format	A specific culture	ToString(String, IFormatProvider)

The format parameter can be any valid Standard Numeric Format Strings, or any combination of Custom Numeric Format Strings. If format is equal to String.Empty or is null, the return value of the current UInt64 object is formatted with the general format specifier ("G"). If format is any other value, the method throws a FormatException.

.NET provides extensive formatting support, which is described in greater detail in the following formatting topics:

For more information about numeric format specifiers, see Standard Numeric Format Strings and Custom Numeric Format Strings.
For more information about support for formatting in .NET, see Formatting Types.

The format of the returned string is determined by the NumberFormatInfo object for the current culture. Depending on the format parameter, this object controls symbols such as the group separator and the decimal point symbol in the output string. To provide formatting information for cultures other than the current culture, call the ToString(String, IFormatProvider) overload.

Applies to

ToString(String, IFormatProvider)

Source:: UInt64.cs

Source:: UInt64.cs

Source:: UInt64.cs

Converts the numeric value of this instance to its equivalent string representation using the specified format and culture-specific format information.

public:
 virtual System::String ^ ToString(System::String ^ format, IFormatProvider ^ provider);

public string ToString (string format, IFormatProvider provider);

public string ToString (string? format, IFormatProvider? provider);

override this.ToString : string * IFormatProvider -> string

Public Function ToString (format As String, provider As IFormatProvider) As String

Parameters

format: String

A numeric format string.

provider: IFormatProvider

An object that supplies culture-specific formatting information about this instance.

Returns

String

The string representation of the value of this instance as specified by format and provider.

Implements

ToString(String, IFormatProvider)

Exceptions

FormatException

The format parameter is invalid.

Examples

The following example displays a 32-bit unsigned integer value by using the standard numeric format specifiers and a number of specific CultureInfo objects.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      // Define cultures whose formatting conventions are to be used.
      CultureInfo[] cultures = { CultureInfo.CreateSpecificCulture("en-US"),
                                 CultureInfo.CreateSpecificCulture("fr-FR"),
                                 CultureInfo.CreateSpecificCulture("es-ES") };
      string[] specifiers = {"G", "C", "D4", "E2", "F", "N", "P", "X2"};
      ulong value = 22224021;

      foreach (string specifier in specifiers)
      {
         foreach (CultureInfo culture in cultures)
            Console.WriteLine("{0,2} format using {1} culture: {2, 18}",
                              specifier, culture.Name,
                              value.ToString(specifier, culture));
         Console.WriteLine();
      }
   }
}
// The example displays the following output:
//        G format using en-US culture:           22224021
//        G format using fr-FR culture:           22224021
//        G format using es-ES culture:           22224021
//
//        C format using en-US culture:     $22,224,021.00
//        C format using fr-FR culture:    22 224 021,00 €
//        C format using es-ES culture:    22.224.021,00 €
//
//       D4 format using en-US culture:           22224021
//       D4 format using fr-FR culture:           22224021
//       D4 format using es-ES culture:           22224021
//
//       E2 format using en-US culture:          2.22E+007
//       E2 format using fr-FR culture:          2,22E+007
//       E2 format using es-ES culture:          2,22E+007
//
//        F format using en-US culture:        22224021.00
//        F format using fr-FR culture:        22224021,00
//        F format using es-ES culture:        22224021,00
//
//        N format using en-US culture:      22,224,021.00
//        N format using fr-FR culture:      22 224 021,00
//        N format using es-ES culture:      22.224.021,00
//
//        P format using en-US culture: 2,222,402,100.00 %
//        P format using fr-FR culture: 2 222 402 100,00 %
//        P format using es-ES culture: 2.222.402.100,00 %
//
//       X2 format using en-US culture:            1531C95
//       X2 format using fr-FR culture:            1531C95
//       X2 format using es-ES culture:            1531C95

open System.Globalization

// Define cultures whose formatting conventions are to be used.
let cultures = 
    [| CultureInfo.CreateSpecificCulture "en-US"
       CultureInfo.CreateSpecificCulture "fr-FR"
       CultureInfo.CreateSpecificCulture "es-ES" |]
let specifiers = [| "G"; "C"; "D4"; "E2"; "F"; "N"; "P"; "X2" |]
let value = 22224021uL

for specifier in specifiers do
    for culture in cultures do
        printfn $"{specifier,2} format using {culture.Name} culture: {value.ToString(specifier, culture), 18}"
    printfn ""
// The example displays the following output:
//        G format using en-US culture:           22224021
//        G format using fr-FR culture:           22224021
//        G format using es-ES culture:           22224021
//
//        C format using en-US culture:     $22,224,021.00
//        C format using fr-FR culture:    22 224 021,00 €
//        C format using es-ES culture:    22.224.021,00 €
//
//       D4 format using en-US culture:           22224021
//       D4 format using fr-FR culture:           22224021
//       D4 format using es-ES culture:           22224021
//
//       E2 format using en-US culture:          2.22E+007
//       E2 format using fr-FR culture:          2,22E+007
//       E2 format using es-ES culture:          2,22E+007
//
//        F format using en-US culture:        22224021.00
//        F format using fr-FR culture:        22224021,00
//        F format using es-ES culture:        22224021,00
//
//        N format using en-US culture:      22,224,021.00
//        N format using fr-FR culture:      22 224 021,00
//        N format using es-ES culture:      22.224.021,00
//
//        P format using en-US culture: 2,222,402,100.00 %
//        P format using fr-FR culture: 2 222 402 100,00 %
//        P format using es-ES culture: 2.222.402.100,00 %
//
//       X2 format using en-US culture:            1531C95
//       X2 format using fr-FR culture:            1531C95
//       X2 format using es-ES culture:            1531C95

Imports System.Globalization

Module Example
   Public Sub Main()
      ' Define cultures whose formatting conventions are to be used.
      Dim cultures() As CultureInfo = {CultureInfo.CreateSpecificCulture("en-US"), _
                                       CultureInfo.CreateSpecificCulture("fr-FR"), _
                                       CultureInfo.CreateSpecificCulture("es-ES") }
      Dim specifiers() As String = {"G", "C", "D4", "E2", "F", "N", "P", "X2"}
      Dim value As ULong = 22224021

      For Each specifier As String In specifiers
         For Each culture As CultureInfo In Cultures
            Console.WriteLine("{0,2} format using {1} culture: {2, 18}", _
                              specifier, culture.Name, _
                              value.ToString(specifier, culture))

         Next
         Console.WriteLine()
      Next
   End Sub
End Module
' The example displays the following output:
'        G format using en-US culture:           22224021
'        G format using fr-FR culture:           22224021
'        G format using es-ES culture:           22224021
'
'        C format using en-US culture:     $22,224,021.00
'        C format using fr-FR culture:    22 224 021,00 €
'        C format using es-ES culture:    22.224.021,00 €
'
'       D4 format using en-US culture:           22224021
'       D4 format using fr-FR culture:           22224021
'       D4 format using es-ES culture:           22224021
'
'       E2 format using en-US culture:          2.22E+007
'       E2 format using fr-FR culture:          2,22E+007
'       E2 format using es-ES culture:          2,22E+007
'
'        F format using en-US culture:        22224021.00
'        F format using fr-FR culture:        22224021,00
'        F format using es-ES culture:        22224021,00
'
'        N format using en-US culture:      22,224,021.00
'        N format using fr-FR culture:      22 224 021,00
'        N format using es-ES culture:      22.224.021,00
'
'        P format using en-US culture: 2,222,402,100.00 %
'        P format using fr-FR culture: 2 222 402 100,00 %
'        P format using es-ES culture: 2.222.402.100,00 %
'
'       X2 format using en-US culture:            1531C95
'       X2 format using fr-FR culture:            1531C95
'       X2 format using es-ES culture:            1531C95

Remarks

The ToString(String, IFormatProvider) method formats a UInt64 value in a specified format by using the NumberFormatInfo object of a specified culture. If you want to use default format or culture settings, use the other overloads of the ToString method, as follows:

To use format	For culture	Use the overload
Default ("G") format	Default (current) culture	ToString()
Default ("G") format	A specific culture	ToString(IFormatProvider)
A specific format	Default (current) culture	ToString(String)

.NET provides extensive formatting support, which is described in greater detail in the following formatting topics:

For more information about numeric format specifiers, see Standard Numeric Format Strings and Custom Numeric Format Strings.
For more information about formatting, see Formatting Types.

The provider parameter is an IFormatProvider implementation. Its GetFormat method returns a NumberFormatInfo object that provides culture-specific information about the format of the string returned by this method. When the ToString(String, IFormatProvider) method is invoked, it calls the provider parameter's IFormatProvider.GetFormat method and passes it a Type object that represents the NumberFormatInfo type. The GetFormat method then returns the NumberFormatInfo object that provides information for formatting the current UInt64 value, such as the group separator symbol or the decimal point symbol. There are three ways to use the provider parameter to supply formatting information to the ToString(String, IFormatProvider) method:

You can pass a CultureInfo object that represents the culture that supplies formatting information. Its GetFormat method returns the NumberFormatInfo object that provides numeric formatting information for that culture.
You can pass the actual NumberFormatInfo object that provides numeric formatting information. (Its implementation of GetFormat just returns itself.)
You can pass a custom object that implements IFormatProvider. Its GetFormat method instantiates and returns the NumberFormatInfo object that provides formatting information.

If provider is null, the formatting of the returned string is based on the NumberFormatInfo object of the current culture.

Applies to

Споделяне чрез

UInt64.ToString Method

Definition

Overloads

ToString()

Returns

Examples

Remarks

See also

Applies to

ToString(IFormatProvider)

Parameters

Returns

Implements

Examples

Remarks

See also

Applies to

ToString(String)

Parameters

Returns

Exceptions

Examples

Remarks

See also

Applies to

ToString(String, IFormatProvider)

Parameters

Returns

Implements

Exceptions

Examples

Remarks

See also

Applies to

Допълнителни ресурси