Convert.ToUInt64 Método
Definição
Importante
Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.
Converte um valor especificado em um inteiro sem sinal de 64 bits.
Sobrecargas
ToUInt64(String) |
Converte a representação de cadeia de caracteres especificada de um número em um inteiro sem sinal de 64 bits equivalente. |
ToUInt64(UInt16) |
Converte o valor do inteiro sem sinal de 16 bits especificado no inteiro sem sinal de 64 bits equivalente. |
ToUInt64(UInt32) |
Converte o valor do inteiro sem sinal de 32 bits especificado em um inteiro sem sinal de 64 bits equivalente. |
ToUInt64(String, IFormatProvider) |
Converte a representação de cadeia de caracteres especificada de um número em um inteiro sem sinal de 64 bits equivalente, usando as informações específicas à cultura especificadas. |
ToUInt64(Object, IFormatProvider) |
Converte o valor do objeto especificado em um inteiro sem sinal de 64 bits, usando as informações de formatação específicas à cultura especificadas. |
ToUInt64(Single) |
Converte o valor do número de ponto flutuante de precisão simples especificado em um inteiro sem sinal de 64 bits equivalente. |
ToUInt64(String, Int32) |
Converte a representação de cadeia de caracteres de um número em uma base especificada em um inteiro sem sinal de 64 bits equivalente. |
ToUInt64(UInt64) |
Retorna o inteiro sem sinal de 64 bits especificado; nenhuma conversão real é executada. |
ToUInt64(SByte) |
Converte o valor do inteiro com sinal de 8 bits especificado no inteiro sem sinal de 64 bits equivalente. |
ToUInt64(Int16) |
Converte o valor do inteiro com sinal de 16 bits especificado no inteiro sem sinal de 64 bits equivalente. |
ToUInt64(Int64) |
Converte o valor do inteiro com sinal de 64 bits especificado em um inteiro sem sinal de 64 bits equivalente. |
ToUInt64(Int32) |
Converte o valor do inteiro com sinal de 32 bits especificado em um inteiro sem sinal de 64 bits equivalente. |
ToUInt64(Double) |
Converte o valor do número de ponto flutuante de precisão dupla especificado em um inteiro sem sinal de 64 bits equivalente. |
ToUInt64(Decimal) |
Converte o valor do número decimal especificado em um inteiro sem sinal de 64 bits equivalente. |
ToUInt64(DateTime) |
A chamada desse método sempre lança InvalidCastException. |
ToUInt64(Char) |
Converte o valor do caractere Unicode especificado no inteiro sem sinal de 64 bits equivalente. |
ToUInt64(Byte) |
Converte o valor do inteiro sem sinal de 8 bits especificado no inteiro sem sinal de 64 bits equivalente. |
ToUInt64(Boolean) |
Converte o valor booliano especificado no inteiro sem sinal de 64 bits equivalente. |
ToUInt64(Object) |
Converte o valor do objeto especificado em um inteiro sem sinal de 64 bits. |
ToUInt64(String)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte a representação de cadeia de caracteres especificada de um número em um inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(System::String ^ value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (string value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (string? value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : string -> uint64
Public Shared Function ToUInt64 (value As String) As ULong
Parâmetros
- value
- String
Uma cadeia de caracteres que contém o número a ser convertido.
Retornos
Um inteiro assinado de 64 bits equivalente ao número em value
, ou 0 (zero) caso value
seja null
.
- Atributos
Exceções
value
não consiste em um sinal opcional seguido de uma sequência de dígitos (de 0 a 9).
value
representa um número menor que UInt64.MinValue ou maior que UInt64.MaxValue.
Exemplos
O exemplo a seguir interpreta os elementos de uma matriz de cadeias de caracteres como cadeias de caracteres numéricas e tenta convertê-los em inteiros longos sem sinal.
string[] values = { "One", "1.34e28", "-26.87", "-18", "-6.00",
" 0", "137", "1601.9", Int32.MaxValue.ToString() };
ulong result;
foreach (string value in values)
{
try {
result = Convert.ToUInt64(value);
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
value.GetType().Name, value, result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("{0} is outside the range of the UInt64 type.", value);
}
catch (FormatException) {
Console.WriteLine("The {0} value '{1}' is not in a recognizable format.",
value.GetType().Name, value);
}
}
// The example displays the following output:
// The String value 'One' is not in a recognizable format.
// The String value '1.34e28' is not in a recognizable format.
// The String value '-26.87' is not in a recognizable format.
// -18 is outside the range of the UInt64 type.
// The String value '-6.00' is not in a recognizable format.
// Converted the String value ' 0' to the UInt64 value 0.
// Converted the String value '137' to the UInt64 value 137.
// The String value '1601.9' is not in a recognizable format.
// Converted the String value '2147483647' to the UInt64 value 2147483647.
let values =
[| "1603"; "1,603"; "one"; "1.6e03"
"1.2e-02"; "-1326"; "1074122" |]
for value in values do
try
let result = Convert.ToUInt16 value
printfn $"Converted the {value.GetType().Name} value '{value}' to the {result.GetType().Name} value {result}."
with
| :? FormatException ->
printfn $"The {value.GetType().Name} value {value} is not in a recognizable format."
| :? OverflowException ->
printfn $"{value} is outside the range of the UInt64 type."
// The example displays the following output:
// Converted the String value '1603' to the UInt64 value 1603.
// The String value 1,603 is not in a recognizable format.
// The String value one is not in a recognizable format.
// The String value 1.6e03 is not in a recognizable format.
// The String value 1.2e-02 is not in a recognizable format.
// -1326 is outside the range of the UInt64 type.
// 1074122 is outside the range of the UInt64 type.
Dim values() As String = { "One", "1.34e28", "-26.87", "-18", "-6.00", _
" 0", "137", "1601.9", Int32.MaxValue.ToString() }
Dim result As ULong
For Each value As String In values
Try
result = Convert.ToUInt64(value)
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
value.GetType().Name, value, result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("{0} is outside the range of the UInt64 type.", value)
Catch e As FormatException
Console.WriteLine("The {0} value '{1}' is not in a recognizable format.", _
value.GetType().Name, value)
End Try
Next
' The example displays the following output:
' The String value 'One' is not in a recognizable format.
' The String value '1.34e28' is not in a recognizable format.
' The String value '-26.87' is not in a recognizable format.
' -18 is outside the range of the UInt64 type.
' The String value '-6.00' is not in a recognizable format.
' Converted the String value ' 0' to the UInt64 value 0.
' Converted the String value '137' to the UInt64 value 137.
' The String value '1601.9' is not in a recognizable format.
' Converted the String value '2147483647' to the UInt64 value 2147483647.
Comentários
Usar o ToInt64(String) método é equivalente a passar value
para o Int64.Parse(String) método .
value
é interpretado usando as convenções de formatação da cultura atual.
Se preferir não manipular uma exceção se a conversão falhar, você poderá chamar o UInt64.TryParse método em vez disso. Ele retorna um valor Boolean que indica se a conversão foi bem-sucedida ou falhou.
Aplica-se a
ToUInt64(UInt16)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do inteiro sem sinal de 16 bits especificado no inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(System::UInt16 value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (ushort value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : uint16 -> uint64
Public Shared Function ToUInt64 (value As UShort) As ULong
Parâmetros
- value
- UInt16
O inteiro não assinado de 16 bits a ser convertido.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
.
- Atributos
Exemplos
O exemplo a seguir converte cada elemento em uma matriz de inteiros de 16 bits sem sinal em um inteiro longo sem sinal.
ushort[] numbers = { UInt16.MinValue, 121, 340, UInt16.MaxValue };
ulong result;
foreach (ushort number in numbers)
{
try {
result = Convert.ToUInt64(number);
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
number.GetType().Name, number,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.",
number.GetType().Name, number);
}
}
// The example displays the following output:
// Converted the UInt16 value 0 to the UInt64 value 0.
// Converted the UInt16 value 121 to the UInt64 value 121.
// Converted the UInt16 value 340 to the UInt64 value 340.
// Converted the UInt16 value 65535 to the UInt64 value 65535.
let numbers = [| UInt16.MinValue; 121us; 340us; UInt16.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt64 type."
// The example displays the following output:
// Converted the UInt16 value '0' to the UInt64 value 0.
// Converted the UInt16 value '121' to the UInt64 value 121.
// Converted the UInt16 value '340' to the UInt64 value 340.
// The UInt16 value 65535 is outside the range of the UInt64 type.
Dim numbers() As UShort = { UInt16.MinValue, 121, 340, UInt16.MaxValue }
Dim result As ULong
For Each number As UShort In numbers
result = Convert.ToUInt64(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 UInt64 value 0.
' Converted the UInt16 value 121 to the UInt64 value 121.
' Converted the UInt16 value 340 to the UInt64 value 340.
' Converted the UInt16 value 65535 to the UInt64 value 65535.
Aplica-se a
ToUInt64(UInt32)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do inteiro sem sinal de 32 bits especificado em um inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(System::UInt32 value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (uint value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : uint32 -> uint64
Public Shared Function ToUInt64 (value As UInteger) As ULong
Parâmetros
- value
- UInt32
O inteiro sem sinal de 32 bits a ser convertido.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
.
- Atributos
Exemplos
O exemplo a seguir converte cada elemento em uma matriz de inteiros sem sinal em um inteiro longo sem sinal.
uint[] numbers = { UInt32.MinValue, 121, 340, UInt32.MaxValue };
ulong result;
foreach (uint number in numbers)
{
try {
result = Convert.ToUInt64(number);
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
number.GetType().Name, number,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.",
number.GetType().Name, number);
}
}
// The example displays the following output:
// Converted the UInt32 value 0 to the UInt64 value 0.
// Converted the UInt32 value 121 to the UInt64 value 121.
// Converted the UInt32 value 340 to the UInt64 value 340.
// Converted the UInt32 value 4294967295 to the UInt64 value 4294967295.
let numbers = [| UInt32.MinValue; 121u; 340u; UInt32.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt64 type."
// The example displays the following output:
// Converted the UInt32 value '0' to the UInt64 value 0.
// Converted the UInt64 value '121' to the UInt64 value 121.
// Converted the UInt64 value '340' to the UInt64 value 340.
// The UInt32 value 4294967295 is outside the range of the UInt64 type.
Dim numbers() As UInteger = { UInt32.MinValue, 121, 340, UInt32.MaxValue }
Dim result As ULong
For Each number As UInteger In numbers
result = Convert.ToUInt64(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 UInt64 value 0.
' Converted the UInt32 value 121 to the UInt64 value 121.
' Converted the UInt32 value 340 to the UInt64 value 340.
' Converted the UInt32 value 4294967295 to the UInt64 value 4294967295.
Aplica-se a
ToUInt64(String, IFormatProvider)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte a representação de cadeia de caracteres especificada de um número em um inteiro sem sinal de 64 bits equivalente, usando as informações específicas à cultura especificadas.
public:
static System::UInt64 ToUInt64(System::String ^ value, IFormatProvider ^ provider);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (string value, IFormatProvider provider);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (string? value, IFormatProvider? provider);
[<System.CLSCompliant(false)>]
static member ToUInt64 : string * IFormatProvider -> uint64
Public Shared Function ToUInt64 (value As String, provider As IFormatProvider) As ULong
Parâmetros
- value
- String
Uma cadeia de caracteres que contém o número a ser convertido.
- provider
- IFormatProvider
Um objeto que fornece informações de formatação específicas da cultura.
Retornos
Um inteiro sem sinal de 64 bits equivalente ao número em value
ou 0 (zero), se value
for null
.
- Atributos
Exceções
value
não consiste em um sinal opcional seguido de uma sequência de dígitos (de 0 a 9).
value
representa um número menor que UInt64.MinValue ou maior que UInt64.MaxValue.
Exemplos
O exemplo a seguir define um objeto NumberFormatInfo personalizado que reconhece a cadeia de caracteres "pos" como o sinal positivo e a cadeia de caracteres "neg" como o sinal negativo. Em seguida, ele tenta converter cada elemento de uma matriz de cadeia de caracteres numérica em um inteiro longo sem sinal. A conversão usa o provedor personalizado e o NumberFormatInfo provedor para a cultura invariável.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
// Create a NumberFormatInfo object and set several properties.
NumberFormatInfo provider = new NumberFormatInfo();
provider.PositiveSign = "pos ";
provider.NegativeSign = "neg ";
// Define an array of numeric strings.
string[] values = { "123456789012", "+123456789012",
"pos 123456789012", "123456789012.",
"123,456,789,012", "18446744073709551615",
"18446744073709551616", "neg 1", "-1" };
// Convert the strings using the format provider.
foreach (string value in values)
{
Console.Write("{0,-20} --> ", value);
try {
Console.WriteLine("{0,20}", Convert.ToUInt64(value, provider));
}
catch (FormatException) {
Console.WriteLine("{0,20}", "Invalid Format");
}
catch (OverflowException) {
Console.WriteLine("{0,20}", "Numeric Overflow");
}
}
}
}
// The example displays the following output:
// 123456789012 --> 123456789012
// +123456789012 --> Invalid Format
// pos 123456789012 --> 123456789012
// 123456789012. --> Invalid Format
// 123,456,789,012 --> Invalid Format
// 18446744073709551615 --> 18446744073709551615
// 18446744073709551616 --> Numeric Overflow
// neg 1 --> Numeric Overflow
// -1 --> Invalid Format
open System
open System.Globalization
// Create a NumberFormatInfo object and set several properties.
let provider = NumberFormatInfo()
provider.PositiveSign <- "pos "
provider.NegativeSign <- "neg "
// Define an array of numeric strings.
let values =
[| "123456789012"; "+123456789012"
"pos 123456789012"; "123456789012."
"123,456,789,012"; "18446744073709551615"
"18446744073709551616"; "neg 1"; "-1" |]
// Convert the strings using the format provider.
for value in values do
printf $"{value,-20} --> "
try
printfn $"{Convert.ToUInt64(value, provider),20}"
with
| :? FormatException ->
printfn "%20s" "Invalid Format"
| :? OverflowException ->
printfn "%20s" "Numeric Overflow"
// The example displays the following output:
// 123456789012 --> 123456789012
// +123456789012 --> Invalid Format
// pos 123456789012 --> 123456789012
// 123456789012. --> Invalid Format
// 123,456,789,012 --> Invalid Format
// 18446744073709551615 --> 18446744073709551615
// 18446744073709551616 --> Numeric Overflow
// neg 1 --> Numeric Overflow
// -1 --> Invalid Format
Imports System.Globalization
Module Example
Public Sub Main()
' Create a NumberFormatInfo object and set several properties.
Dim provider As New NumberFormatInfo()
provider.PositiveSign = "pos "
provider.NegativeSign = "neg "
' Define an array of numeric strings.
Dim values() As String = { "123456789012", "+123456789012", _
"pos 123456789012", "123456789012.", _
"123,456,789,012", "18446744073709551615", _
"18446744073709551616", "neg 1", "-1" }
' Convert the strings using the format provider.
For Each value As String In values
Console.Write("{0,-20} --> ", value)
Try
Console.WriteLine("{0,20}", Convert.ToUInt64(value, provider))
Catch e As FormatException
Console.WriteLine("{0,20}", "Invalid Format")
Catch e As OverflowException
Console.WriteLine("{0,20}", "Numeric Overflow")
End Try
Next
End Sub
End Module
' The example displays the following output:
' 123456789012 --> 123456789012
' +123456789012 --> Invalid Format
' pos 123456789012 --> 123456789012
' 123456789012. --> Invalid Format
' 123,456,789,012 --> Invalid Format
' 18446744073709551615 --> 18446744073709551615
' 18446744073709551616 --> Numeric Overflow
' neg 1 --> Numeric Overflow
' -1 --> Invalid Format
Comentários
O valor retornado é o resultado da invocação UInt64.Parse em value
.
provider
é uma implementação IFormatProvider que obtém um NumberFormatInfo objeto . O objeto NumberFormatInfo fornece informações específicas da cultura sobre o formato de value
. Caso provider
seja null
, o objeto NumberFormatInfo da cultura atual é usado.
Se preferir não manipular uma exceção se a conversão falhar, você poderá chamar o UInt64.TryParse método em vez disso. Ele retorna um valor Boolean que indica se a conversão foi bem-sucedida ou falhou.
Aplica-se a
ToUInt64(Object, IFormatProvider)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do objeto especificado em um inteiro sem sinal de 64 bits, usando as informações de formatação específicas à cultura especificadas.
public:
static System::UInt64 ToUInt64(System::Object ^ value, IFormatProvider ^ provider);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (object value, IFormatProvider provider);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (object? value, IFormatProvider? provider);
[<System.CLSCompliant(false)>]
static member ToUInt64 : obj * IFormatProvider -> uint64
Public Shared Function ToUInt64 (value As Object, provider As IFormatProvider) As ULong
Parâmetros
- value
- Object
Um objeto que implementa a interface do IConvertible.
- provider
- IFormatProvider
Um objeto que fornece informações de formatação específicas da cultura.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
ou zero, se value
for null
.
- Atributos
Exceções
value
não está em um formato adequado.
value
representa um número menor que UInt64.MinValue ou maior que UInt64.MaxValue.
Exemplos
O exemplo a seguir define uma HexString
classe que implementa a IConvertible interface e que foi projetada para manter a representação de cadeia de caracteres de valores assinados de 64 bits e sem sinal de 64 bits. A classe inclui uma Sign
propriedade que indica o sinal de seu valor hexadecimal.
using System;
using System.Globalization;
using System.Text.RegularExpressions;
public enum SignBit { Negative=-1, Zero=0, Positive=1 };
public struct HexString : IConvertible
{
private SignBit signBit;
private string hexString;
public SignBit Sign
{
set { signBit = value; }
get { return signBit; }
}
public string Value
{
set
{
if (value.Trim().Length > 16)
throw new ArgumentException("The hexadecimal representation of a 64-bit integer cannot have more than 16 characters.");
else if (! Regex.IsMatch(value, "([0-9,A-F]){1,8}", RegexOptions.IgnoreCase))
throw new ArgumentException("The hexadecimal representation of a 64-bit integer contains invalid characters.");
else
hexString = value;
}
get { return hexString; }
}
// IConvertible implementations.
public TypeCode GetTypeCode()
{
return TypeCode.Object;
}
public bool ToBoolean(IFormatProvider provider)
{
return signBit != SignBit.Zero;
}
public byte ToByte(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
throw new OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToInt64(hexString, 16)));
else
try {
return Byte.Parse(hexString, NumberStyles.HexNumber);
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToUInt64(hexString, 16)), e);
}
}
public char ToChar(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
throw new OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToInt64(hexString, 16)));
try {
ushort codePoint = UInt16.Parse(this.hexString, NumberStyles.HexNumber);
return Convert.ToChar(codePoint);
}
catch (OverflowException) {
throw new OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToUInt64(hexString, 16)));
}
}
public DateTime ToDateTime(IFormatProvider provider)
{
throw new InvalidCastException("Hexadecimal to DateTime conversion is not supported.");
}
public decimal ToDecimal(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
{
long hexValue = Int64.Parse(hexString, NumberStyles.HexNumber);
return Convert.ToDecimal(hexValue);
}
else
{
ulong hexValue = UInt64.Parse(hexString, NumberStyles.HexNumber);
return Convert.ToDecimal(hexValue);
}
}
public double ToDouble(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
return Convert.ToDouble(Int64.Parse(hexString, NumberStyles.HexNumber));
else
return Convert.ToDouble(UInt64.Parse(hexString, NumberStyles.HexNumber));
}
public short ToInt16(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
try {
return Convert.ToInt16(Int64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToInt64(hexString, 16)), e);
}
else
try {
return Convert.ToInt16(UInt64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToUInt64(hexString, 16)), e);
}
}
public int ToInt32(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
try {
return Convert.ToInt32(Int64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is out of range of the Int32 type.", Convert.ToUInt64(hexString, 16)), e);
}
else
try {
return Convert.ToInt32(UInt64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is out of range of the Int32 type.", Convert.ToUInt64(hexString, 16)), e);
}
}
public long ToInt64(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
return Int64.Parse(hexString, NumberStyles.HexNumber);
else
try {
return Convert.ToInt64(UInt64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is out of range of the Int64 type.", Convert.ToUInt64(hexString, 16)), e);
}
}
public sbyte ToSByte(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
try {
return Convert.ToSByte(Int64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is outside the range of the SByte type.",
Int64.Parse(hexString, NumberStyles.HexNumber), e));
}
else
try {
return Convert.ToSByte(UInt64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is outside the range of the SByte type.",
UInt64.Parse(hexString, NumberStyles.HexNumber)), e);
}
}
public float ToSingle(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
return Convert.ToSingle(Int64.Parse(hexString, NumberStyles.HexNumber));
else
return Convert.ToSingle(UInt64.Parse(hexString, NumberStyles.HexNumber));
}
public string ToString(IFormatProvider provider)
{
return "0x" + this.hexString;
}
public object ToType(Type conversionType, IFormatProvider provider)
{
switch (Type.GetTypeCode(conversionType))
{
case TypeCode.Boolean:
return this.ToBoolean(null);
case TypeCode.Byte:
return this.ToByte(null);
case TypeCode.Char:
return this.ToChar(null);
case TypeCode.DateTime:
return this.ToDateTime(null);
case TypeCode.Decimal:
return this.ToDecimal(null);
case TypeCode.Double:
return this.ToDouble(null);
case TypeCode.Int16:
return this.ToInt16(null);
case TypeCode.Int32:
return this.ToInt32(null);
case TypeCode.Int64:
return this.ToInt64(null);
case TypeCode.Object:
if (typeof(HexString).Equals(conversionType))
return this;
else
throw new InvalidCastException(String.Format("Conversion to a {0} is not supported.", conversionType.Name));
case TypeCode.SByte:
return this.ToSByte(null);
case TypeCode.Single:
return this.ToSingle(null);
case TypeCode.String:
return this.ToString(null);
case TypeCode.UInt16:
return this.ToUInt16(null);
case TypeCode.UInt32:
return this.ToUInt32(null);
case TypeCode.UInt64:
return this.ToUInt64(null);
default:
throw new InvalidCastException(String.Format("Conversion to {0} is not supported.", conversionType.Name));
}
}
public ushort ToUInt16(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
throw new OverflowException(String.Format("{0} is outside the range of the UInt16 type.",
Int64.Parse(hexString, NumberStyles.HexNumber)));
else
try {
return Convert.ToUInt16(UInt64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException e) {
throw new OverflowException(String.Format("{0} is out of range of the UInt16 type.", Convert.ToUInt64(hexString, 16)), e);
}
}
public uint ToUInt32(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
throw new OverflowException(String.Format("{0} is outside the range of the UInt32 type.",
Int64.Parse(hexString, NumberStyles.HexNumber)));
else
try {
return Convert.ToUInt32(UInt64.Parse(hexString, NumberStyles.HexNumber));
}
catch (OverflowException) {
throw new OverflowException(String.Format("{0} is outside the range of the UInt32 type.",
UInt64.Parse(hexString, NumberStyles.HexNumber)));
}
}
public ulong ToUInt64(IFormatProvider provider)
{
if (signBit == SignBit.Negative)
throw new OverflowException(String.Format("{0} is outside the range of the UInt64 type.",
Int64.Parse(hexString, NumberStyles.HexNumber)));
else
return Convert.ToUInt64(hexString, 16);
}
}
open System
open System.Globalization
open System.Text.RegularExpressions
type SignBit =
| Negative = -1
| Zero = 0
| Positive = 1
[<Struct>]
type HexString =
val mutable private hexString: string
val mutable Sign: SignBit
member this.Value
with get () = this.hexString
and set (value: string) =
if value.Trim().Length > 16 then
invalidArg "value" "The hexadecimal representation of a 64-bit integer cannot have more than 16 characters."
elif Regex.IsMatch(value, "([0-9,A-F]){1,8}", RegexOptions.IgnoreCase) |> not then
invalidArg "value" "The hexadecimal representation of a 64-bit integer contains invalid characters."
else
this.hexString <- value
// IConvertible implementations.
interface IConvertible with
member _.GetTypeCode() =
TypeCode.Object
member this.ToBoolean(provider: IFormatProvider) =
this.Sign <> SignBit.Zero
member this.ToByte(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
raise (OverflowException $"{Convert.ToInt64(this.hexString, 16)} is out of range of the Byte type.")
try
Byte.Parse(this.hexString, NumberStyles.HexNumber)
with :? OverflowException as e ->
raise (OverflowException($"{Convert.ToUInt64(this.hexString, 16)} is out of range of the Byte type.", e) )
member this.ToChar(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
raise (OverflowException $"{Convert.ToInt64(this.hexString, 16)} is out of range of the Char type.")
try
let codePoint = UInt16.Parse(this.hexString, NumberStyles.HexNumber)
Convert.ToChar codePoint
with :? OverflowException ->
raise (OverflowException $"{Convert.ToUInt64(this.hexString, 16)} is out of range of the Char type.")
member this.ToDateTime(provider: IFormatProvider) =
raise (InvalidCastException "Hexadecimal to DateTime conversion is not supported.")
member this.ToDecimal(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
let hexValue = Int64.Parse(this.hexString, NumberStyles.HexNumber)
Convert.ToDecimal hexValue
else
let hexValue = UInt64.Parse(this.hexString, NumberStyles.HexNumber)
Convert.ToDecimal hexValue
member this.ToDouble(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
Convert.ToDouble(Int64.Parse(this.hexString, NumberStyles.HexNumber))
else
Convert.ToDouble(UInt64.Parse(this.hexString, NumberStyles.HexNumber))
member this.ToInt16(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
try
Convert.ToInt16(Int64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException as e ->
raise (OverflowException($"{Convert.ToInt64(this.hexString, 16)} is out of range of the Int16 type.", e) )
else
try
Convert.ToInt16(UInt64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException as e ->
raise (OverflowException($"{Convert.ToUInt64(this.hexString, 16)} is out of range of the Int16 type.", e) )
member this.ToInt32(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
try
Convert.ToInt32(Int64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException as e ->
raise (OverflowException($"{Convert.ToUInt64(this.hexString, 16)} is out of range of the Int32 type.", e) )
else
try
Convert.ToInt32(UInt64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException as e ->
raise (OverflowException($"{Convert.ToUInt64(this.hexString, 16)} is out of range of the Int32 type.", e) )
member this.ToInt64(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
Int64.Parse(this.hexString, NumberStyles.HexNumber)
else
try
Convert.ToInt64(UInt64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException as e ->
raise (OverflowException($"{Convert.ToUInt64(this.hexString, 16)} is out of range of the Int64 type.", e) )
member this.ToSByte(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
try
Convert.ToSByte(Int64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException as e ->
raise (OverflowException($"{Int64.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the SByte type.", e) )
else
try
Convert.ToSByte(UInt64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException as e ->
raise (OverflowException($"{UInt64.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the SByte type.", e) )
member this.ToSingle(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
Convert.ToSingle(Int64.Parse(this.hexString, NumberStyles.HexNumber))
else
Convert.ToSingle(UInt64.Parse(this.hexString, NumberStyles.HexNumber))
member this.ToString(provider: IFormatProvider) =
"0x" + this.hexString
member this.ToType(conversionType: Type, provider: IFormatProvider) =
let this = this :> IConvertible
match Type.GetTypeCode conversionType with
| TypeCode.Boolean ->
this.ToBoolean null
| TypeCode.Byte ->
this.ToByte null
| TypeCode.Char ->
this.ToChar null
| TypeCode.DateTime ->
this.ToDateTime null
| TypeCode.Decimal ->
this.ToDecimal null
| TypeCode.Double ->
this.ToDouble null
| TypeCode.Int16 ->
this.ToInt16 null
| TypeCode.Int32 ->
this.ToInt32 null
| TypeCode.Int64 ->
this.ToInt64 null
| TypeCode.Object ->
if typeof<HexString>.Equals conversionType then
this
else
raise (InvalidCastException $"Conversion to a {conversionType.Name} is not supported.")
| TypeCode.SByte ->
this.ToSByte null
| TypeCode.Single ->
this.ToSingle null
| TypeCode.String ->
this.ToString null
| TypeCode.UInt16 ->
this.ToUInt16 null
| TypeCode.UInt32 ->
this.ToUInt32 null
| TypeCode.UInt64 ->
this.ToUInt64 null
| _ ->
raise (InvalidCastException $"Conversion to {conversionType.Name} is not supported.")
member this.ToUInt16(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
raise (OverflowException $"{Int64.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt16 type.")
else
try
Convert.ToUInt16(UInt64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException as e ->
raise (OverflowException($"{Convert.ToUInt64(this.hexString, 16)} is out of range of the UInt16 type.", e) )
member this.ToUInt32(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
raise (OverflowException $"{Int64.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt32 type.")
else
try
Convert.ToUInt32(UInt64.Parse(this.hexString, NumberStyles.HexNumber))
with :? OverflowException ->
raise (OverflowException $"{UInt64.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt32 type.")
member this.ToUInt64(provider: IFormatProvider) =
if this.Sign = SignBit.Negative then
raise (OverflowException $"{Int64.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt64 type.")
else
Convert.ToUInt64(this.hexString, 16)
Imports System.Globalization
Imports System.Text.RegularExpressions
Public Enum SignBit As Integer
Positive = 1
Zero = 0
Negative = -1
End Enum
Public Structure HexString : Implements IConvertible
Private signBit As SignBit
Private hexString As String
Public Property Sign As SignBit
Set
signBit = value
End Set
Get
Return signBit
End Get
End Property
Public Property Value As String
Set
If value.Trim().Length > 16 Then
Throw New ArgumentException("The hexadecimal representation of a 64-bit integer cannot have more than 16 characters.")
ElseIf Not Regex.IsMatch(value, "([0-9,A-F]){1,8}", RegexOptions.IgnoreCase) Then
Throw New ArgumentException("The hexadecimal representation of a 64-bit integer contains invalid characters.")
Else
hexString = value
End If
End Set
Get
Return hexString
End Get
End Property
' IConvertible implementations.
Public Function GetTypeCode() As TypeCode _
Implements IConvertible.GetTypeCode
Return TypeCode.Object
End Function
Public Function ToBoolean(provider As IFormatProvider) As Boolean _
Implements IConvertible.ToBoolean
Return signBit <> SignBit.Zero
End Function
Public Function ToByte(provider As IFormatProvider) As Byte _
Implements IConvertible.ToByte
If signBit = SignBit.Negative Then
Throw New OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToInt64(hexString, 16)))
Else
Try
Return Byte.Parse(hexString, NumberStyles.HexNumber)
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToUInt64(hexString, 16)), e)
End Try
End If
End Function
Public Function ToChar(provider As IFormatProvider) As Char _
Implements IConvertible.ToChar
If signBit = SignBit.Negative Then
Throw New OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToInt64(hexString, 16)))
End If
Try
Dim codePoint As UInt16 = UInt16.Parse(Me.hexString, NumberStyles.HexNumber)
Return Convert.ToChar(codePoint)
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToUInt64(hexString, 16)))
End Try
End Function
Public Function ToDateTime(provider As IFormatProvider) As Date _
Implements IConvertible.ToDateTime
Throw New InvalidCastException("Hexadecimal to DateTime conversion is not supported.")
End Function
Public Function ToDecimal(provider As IFormatProvider) As Decimal _
Implements IConvertible.ToDecimal
If signBit = SignBit.Negative Then
Dim hexValue As Long = Int64.Parse(hexString, NumberStyles.HexNumber)
Return Convert.ToDecimal(hexValue)
Else
Dim hexValue As ULong = UInt64.Parse(hexString, NumberStyles.HexNumber)
Return Convert.ToDecimal(hexValue)
End If
End Function
Public Function ToDouble(provider As IFormatProvider) As Double _
Implements IConvertible.ToDouble
If signBit = SignBit.Negative Then
Return Convert.ToDouble(Int64.Parse(hexString, NumberStyles.HexNumber))
Else
Return Convert.ToDouble(UInt64.Parse(hexString, NumberStyles.HexNumber))
End If
End Function
Public Function ToInt16(provider As IFormatProvider) As Int16 _
Implements IConvertible.ToInt16
If signBit = SignBit.Negative Then
Try
Return Convert.ToInt16(Int64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToInt64(hexString, 16)), e)
End Try
Else
Try
Return Convert.ToInt16(UInt64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToUInt64(hexString, 16)), e)
End Try
End If
End Function
Public Function ToInt32(provider As IFormatProvider) As Int32 _
Implements IConvertible.ToInt32
If signBit = SignBit.Negative Then
Try
Return Convert.ToInt32(Int64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is out of range of the Int32 type.", Convert.ToUInt64(hexString, 16)), e)
End Try
Else
Try
Return Convert.ToInt32(UInt64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is out of range of the Int32 type.", Convert.ToUInt64(hexString, 16)), e)
End Try
End If
End Function
Public Function ToInt64(provider As IFormatProvider) As Int64 _
Implements IConvertible.ToInt64
If signBit = SignBit.Negative Then
Return Int64.Parse(hexString, NumberStyles.HexNumber)
Else
Try
Return Convert.ToInt64(UInt64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is out of range of the Int64 type.", Convert.ToUInt64(hexString, 16)), e)
End Try
End If
End Function
Public Function ToSByte(provider As IFormatProvider) As SByte _
Implements IConvertible.ToSByte
If signBit = SignBit.Negative Then
Try
Return Convert.ToSByte(Int64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is outside the range of the SByte type.", _
Int64.Parse(hexString, NumberStyles.HexNumber), e))
End Try
Else
Try
Return Convert.ToSByte(UInt64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is outside the range of the SByte type.", _
UInt64.Parse(hexString, NumberStyles.HexNumber)), e)
End Try
End If
End Function
Public Function ToSingle(provider As IFormatProvider) As Single _
Implements IConvertible.ToSingle
If signBit = SignBit.Negative Then
Return Convert.ToSingle(Int64.Parse(hexString, NumberStyles.HexNumber))
Else
Return Convert.ToSingle(UInt64.Parse(hexString, NumberStyles.HexNumber))
End If
End Function
Public Overloads Function ToString(provider As IFormatProvider) As String _
Implements IConvertible.ToString
Return "0x" & Me.hexString
End Function
Public Function ToType(conversionType As Type, provider As IFormatProvider) As Object _
Implements IConvertible.ToType
Select Case Type.GetTypeCode(conversionType)
Case TypeCode.Boolean
Return Me.ToBoolean(Nothing)
Case TypeCode.Byte
Return Me.ToByte(Nothing)
Case TypeCode.Char
Return Me.ToChar(Nothing)
Case TypeCode.DateTime
Return Me.ToDateTime(Nothing)
Case TypeCode.Decimal
Return Me.ToDecimal(Nothing)
Case TypeCode.Double
Return Me.ToDouble(Nothing)
Case TypeCode.Int16
Return Me.ToInt16(Nothing)
Case TypeCode.Int32
Return Me.ToInt32(Nothing)
Case TypeCode.Int64
Return Me.ToInt64(Nothing)
Case TypeCode.Object
If GetType(HexString).Equals(conversionType) Then
Return Me
Else
Throw New InvalidCastException(String.Format("Conversion to a {0} is not supported.", conversionType.Name))
End If
Case TypeCode.SByte
Return Me.ToSByte(Nothing)
Case TypeCode.Single
Return Me.ToSingle(Nothing)
Case TypeCode.String
Return Me.ToString(Nothing)
Case TypeCode.UInt16
Return Me.ToUInt16(Nothing)
Case TypeCode.UInt32
Return Me.ToUInt32(Nothing)
Case TypeCode.UInt64
Return Me.ToUInt64(Nothing)
Case Else
Throw New InvalidCastException(String.Format("Conversion to {0} is not supported.", conversionType.Name))
End Select
End Function
Public Function ToUInt16(provider As IFormatProvider) As UInt16 _
Implements IConvertible.ToUInt16
If signBit = SignBit.Negative Then
Throw New OverflowException(String.Format("{0} is outside the range of the UInt16 type.", _
Int64.Parse(hexString, NumberStyles.HexNumber)))
Else
Try
Return Convert.ToUInt16(UInt64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is out of range of the UInt16 type.", Convert.ToUInt64(hexString, 16)), e)
End Try
End If
End Function
Public Function ToUInt32(provider As IFormatProvider) As UInt32 _
Implements IConvertible.ToUInt32
If signBit = SignBit.Negative Then
Throw New OverflowException(String.Format("{0} is outside the range of the UInt32 type.", _
Int64.Parse(hexString, NumberStyles.HexNumber)))
Else
Try
Return Convert.ToUInt32(UInt64.Parse(hexString, NumberStyles.HexNumber))
Catch e As OverflowException
Throw New OverflowException(String.Format("{0} is outside the range of the UInt32 type.", _
UInt64.Parse(hexString, NumberStyles.HexNumber)))
End Try
End If
End Function
Public Function ToUInt64(provider As IFormatProvider) As UInt64 _
Implements IConvertible.ToUInt64
If signBit = SignBit.Negative Then
Throw New OverflowException(String.Format("{0} is outside the range of the UInt64 type.", _
Int64.Parse(hexString, NumberStyles.HexNumber)))
Else
Return Convert.ToUInt64(hexString, 16)
End If
End Function
End Structure
O exemplo a seguir mostra que uma chamada para o ToUInt64(Object, IFormatProvider) método que passa um HexString
objeto como um parâmetro, por sua vez, chama a IConvertible.ToUInt64 implementação da HexString
classe .
public class Example
{
public static void Main()
{
ulong positiveValue = UInt64.MaxValue - 100000;
long negativeValue = -1;
HexString positiveString = new HexString();
positiveString.Sign = (SignBit) Math.Sign((decimal)positiveValue);
positiveString.Value = positiveValue.ToString("X");
HexString negativeString = new HexString();
negativeString.Sign = (SignBit) Math.Sign(negativeValue);
negativeString.Value = negativeValue.ToString("X");
try {
Console.WriteLine("0x{0} converts to {1}.", positiveString.Value, Convert.ToUInt64(positiveString));
}
catch (OverflowException) {
Console.WriteLine("{0} is outside the range of the UInt64 type.",
Int64.Parse(positiveString.Value, NumberStyles.HexNumber));
}
try {
Console.WriteLine("0x{0} converts to {1}.", negativeString.Value, Convert.ToUInt64(negativeString));
}
catch (OverflowException) {
Console.WriteLine("{0} is outside the range of the UInt64 type.",
Int64.Parse(negativeString.Value, NumberStyles.HexNumber));
}
}
}
// The example displays the following output:
// 0xFFFFFFFFFFFE795F converts to 18446744073709451615.
// -1 is outside the range of the UInt64 type.
let positiveValue = UInt64.MaxValue - 100000uL
let negativeValue = -1L
let mutable positiveString = HexString()
positiveString.Sign <- Math.Sign(decimal positiveValue) |> enum
positiveString.Value <- positiveValue.ToString "X"
let mutable negativeString = HexString()
negativeString.Sign <- sign negativeValue |> enum
negativeString.Value <- negativeValue.ToString "X"
try
printfn $"0x{positiveString.Value} converts to {Convert.ToUInt64 positiveString}."
with :? OverflowException ->
printfn $"{Int64.Parse(positiveString.Value, NumberStyles.HexNumber)} is outside the range of the UInt64 type."
try
printfn $"0x{negativeString.Value} converts to {Convert.ToUInt64 negativeString}."
with :? OverflowException ->
printfn $"{Int64.Parse(negativeString.Value, NumberStyles.HexNumber)} is outside the range of the UInt64 type."
// The example displays the following output:
// 0xFFFFFFFFFFFE795F converts to 18446744073709451615.
// -1 is outside the range of the UInt64 type.
Module Example
Public Sub Main()
Dim positiveValue As UInt64 = CULng(UInt64.MaxValue - 100000)
Dim negativeValue As Int64 = -1
Dim positiveString As New HexString()
positiveString.Sign = CType(Math.Sign(positiveValue), SignBit)
positiveString.Value = positiveValue.ToString("X")
Dim negativeString As New HexString()
negativeString.Sign = CType(Math.Sign(negativeValue), SignBit)
negativeString.Value = negativeValue.ToString("X")
Try
Console.WriteLine("0x{0} converts to {1}.", positiveString.Value, Convert.ToUInt64(positiveString))
Catch e As OverflowException
Console.WriteLine("{0} is outside the range of the UInt64 type.", _
Int64.Parse(positiveString.Value, NumberStyles.HexNumber))
End Try
Try
Console.WriteLine("0x{0} converts to {1}.", negativeString.Value, Convert.ToUInt64(negativeString))
Catch e As OverflowException
Console.WriteLine("{0} is outside the range of the UInt64 type.", _
Int64.Parse(negativeString.Value, NumberStyles.HexNumber))
End Try
End Sub
End Module
' The example dosplays the following output:
' 0xFFFFFFFFFFFE795F converts to 18446744073709451615.
' -1 is outside the range of the UInt64 type.
Comentários
O valor retornado é o resultado da invocação do IConvertible.ToUInt64 método do tipo subjacente de value
.
provider
permite que o usuário especifique informações de conversão específicas da cultura sobre o conteúdo de value
. Por exemplo, se value
fosse um String que representa um número, provider
poderia fornecer informações específicas de cultura sobre a notação usada para representar esse número.
Os tipos de base ignoram provider
; no entanto, o parâmetro pode ser usado caso value
seja um tipo definido pelo usuário que implementa a interface IConvertible.
Aplica-se a
ToUInt64(Single)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do número de ponto flutuante de precisão simples especificado em um inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(float value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (float value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : single -> uint64
Public Shared Function ToUInt64 (value As Single) As ULong
Parâmetros
- value
- Single
O número de ponto flutuante de precisão simples a ser convertido.
Retornos
value
, arredondado para o próximo inteiro sem sinal de 64 bits. Caso value
esteja entre dois números inteiros, o número par é retornado; ou seja, 4,5 é convertido em 4 e 5,5 é convertido em 6.
- Atributos
Exceções
value
é menor que zero ou maior que UInt64.MaxValue.
Exemplos
O exemplo a seguir tenta converter cada elemento em uma matriz de Single valores em um inteiro longo sem sinal. A saída mostra que os valores fracionários são arredondados antes da conversão ser executada.
float[] values= { Single.MinValue, -1.38e10f, -1023.299f, -12.98f,
0f, 9.113e-16f, 103.919f, 17834.191f, Single.MaxValue };
ulong result;
foreach (float value in values)
{
try {
result = Convert.ToUInt64(value);
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
value.GetType().Name, value, result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("{0} is outside the range of the UInt64 type.", value);
}
}
// The example displays the following output:
// -3.402823E+38 is outside the range of the UInt64 type.
// -1.38E+10 is outside the range of the UInt64 type.
// -1023.299 is outside the range of the UInt64 type.
// -12.98 is outside the range of the UInt64 type.
// Converted the Single value 0 to the UInt64 value 0.
// Converted the Single value 9.113E-16 to the UInt64 value 0.
// Converted the Single value 103.919 to the UInt64 value 104.
// Converted the Single value 17834.19 to the UInt64 value 17834.
// 3.402823E+38 is outside the range of the UInt64 type.
let numbers =
[| Single.MinValue; -1.38e10f; -1023.299f; -12.98f
0f; 9.113e-16f; 103.919f; 17834.191f; Single.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn $"{number} is outside the range of the UInt64 type."
// The example displays the following output:
// -3.402823E+38 is outside the range of the UInt64 type.
// -1.38E+10 is outside the range of the UInt64 type.
// -1023.299 is outside the range of the UInt64 type.
// -12.98 is outside the range of the UInt64 type.
// Converted the Single value '0' to the UInt64 value 0.
// Converted the Single value '9.113E-16' to the UInt64 value 0.
// Converted the Single value '103.919' to the UInt64 value 104.
// Converted the Single value '17834.19' to the UInt64 value 17834.
// 3.402823E+38 is outside the range of the UInt64 type.
Dim values() As Single = { Single.MinValue, -1.38e10, -1023.299, -12.98, _
0, 9.113e-16, 103.919, 17834.191, Single.MaxValue }
Dim result As ULong
For Each value As Single In values
Try
result = Convert.ToUInt64(value)
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
value.GetType().Name, value, result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.", _
value.GetType().Name, value)
End Try
Next
' The example displays the following output:
' The Single value -3.402823E+38 is outside the range of the UInt64 type.
' The Single value -1.38E+10 is outside the range of the UInt64 type.
' The Single value -1023.299 is outside the range of the UInt64 type.
' The Single value -12.98 is outside the range of the UInt64 type.
' Converted the Single value 0 to the UInt64 value 0.
' Converted the Single value 9.113E-16 to the UInt64 value 0.
' Converted the Single value 103.919 to the UInt64 value 104.
' Converted the Single value 17834.19 to the UInt64 value 17834.
' The Single value 3.402823E+38 is outside the range of the UInt64 type.
Confira também
Aplica-se a
ToUInt64(String, Int32)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte a representação de cadeia de caracteres de um número em uma base especificada em um inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(System::String ^ value, int fromBase);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (string value, int fromBase);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (string? value, int fromBase);
[<System.CLSCompliant(false)>]
static member ToUInt64 : string * int -> uint64
Public Shared Function ToUInt64 (value As String, fromBase As Integer) As ULong
Parâmetros
- value
- String
Uma cadeia de caracteres que contém o número a ser convertido.
- fromBase
- Int32
A base do número em value
, que deve ser 2, 8, 10 ou 16.
Retornos
Um inteiro sem sinal de 64 bits equivalente ao número em value
ou 0 (zero), se value
for null
.
- Atributos
Exceções
fromBase
não é 2, 8, 10 ou 16.
- ou -
value
, que representa um número não assinado de base não 10, é prefixado com um sinal negativo.
value
é Empty.
value
contém um caractere que não é um dígito válido na base especificada por fromBase
. A mensagem de exceção indica que não há dígitos a serem convertidos caso o primeiro caractere em value
seja inválido; do contrário, a mensagem indica que value
contém caracteres à direita inválidos.
value
, que representa um número não assinado de base não 10, é prefixado com um sinal negativo.
- ou -
value
representa um número menor que UInt64.MinValue ou maior que UInt64.MaxValue.
Exemplos
O exemplo a seguir tenta interpretar cada elemento em uma matriz de cadeias de caracteres numéricas como um valor hexadecimal e convertê-lo em um inteiro longo sem sinal.
using System;
public class Example
{
public static void Main()
{
string[] hexStrings = { "8000000000000000", "0FFFFFFFFFFFFFFF",
"F000000000000000", "00A3000000000000",
"D", "-13", "9AC61", "GAD",
"FFFFFFFFFFFFFFFFF" };
foreach (string hexString in hexStrings)
{
Console.Write("{0,-18} --> ", hexString);
try {
ulong number = Convert.ToUInt64(hexString, 16);
Console.WriteLine("{0,26:N0}", number);
}
catch (FormatException) {
Console.WriteLine("{0,26}", "Bad Format");
}
catch (OverflowException) {
Console.WriteLine("{0,26}", "Numeric Overflow");
}
catch (ArgumentException) {
Console.WriteLine("{0,26}", "Invalid in Base 16");
}
}
}
}
// The example displays the following output:
// 8000000000000000 --> 9,223,372,036,854,775,808
// 0FFFFFFFFFFFFFFF --> 1,152,921,504,606,846,975
// F000000000000000 --> 17,293,822,569,102,704,640
// 00A3000000000000 --> 45,880,421,203,836,928
// D --> 13
// -13 --> Invalid in Base 16
// 9AC61 --> 633,953
// GAD --> Bad Format
// FFFFFFFFFFFFFFFFF --> Numeric Overflow
open System
let hexStrings =
[| "8000000000000000"; "0FFFFFFFFFFFFFFF"
"F000000000000000"; "00A3000000000000"
"D"; "-13"; "9AC61"; "GAD"
"FFFFFFFFFFFFFFFFF" |]
for hexString in hexStrings do
printf $"{hexString,-18} --> "
try
let number = Convert.ToUInt64(hexString, 16)
printfn $"{number,26:N0}"
with
| :? FormatException ->
printfn "%26s" "Bad Format"
| :? OverflowException ->
printfn "%26s" "Numeric Overflow"
| :? ArgumentException ->
printfn "%26s" "Invalid in Base 16"
// The example displays the following output:
// 8000000000000000 --> 9,223,372,036,854,775,808
// 0FFFFFFFFFFFFFFF --> 1,152,921,504,606,846,975
// F000000000000000 --> 17,293,822,569,102,704,640
// 00A3000000000000 --> 45,880,421,203,836,928
// D --> 13
// -13 --> Invalid in Base 16
// 9AC61 --> 633,953
// GAD --> Bad Format
// FFFFFFFFFFFFFFFFF --> Numeric Overflow
Module Example
Public Sub Main()
Dim hexStrings() As String = { "8000000000000000", "0FFFFFFFFFFFFFFF", _
"F000000000000000", "00A3000000000000", _
"D", "-13", "9AC61", "GAD", _
"FFFFFFFFFFFFFFFFF" }
For Each hexString As String In hexStrings
Console.Write("{0,-18} --> ", hexString)
Try
Dim number As ULong = Convert.ToUInt64(hexString, 16)
Console.WriteLine("{0,26:N0}", number)
Catch e As FormatException
Console.WriteLine("{0,26}", "Bad Format")
Catch e As OverflowException
Console.WriteLine("{0,26}", "Numeric Overflow")
Catch e As ArgumentException
Console.WriteLine("{0,26}", "Invalid in Base 16")
End Try
Next
End Sub
End Module
' The example displays the following output:
' 8000000000000000 --> 9,223,372,036,854,775,808
' 0FFFFFFFFFFFFFFF --> 1,152,921,504,606,846,975
' F000000000000000 --> 17,293,822,569,102,704,640
' 00A3000000000000 --> 45,880,421,203,836,928
' D --> 13
' -13 --> Invalid in Base 16
' 9AC61 --> 633,953
' GAD --> Bad Format
' FFFFFFFFFFFFFFFFF --> Numeric Overflow
Comentários
Caso fromBase
seja 16, é possível prefixar o número especificado pelo parâmetro value
com "0x" ou "0X".
Como o UInt64 tipo de dados dá suporte apenas a valores não assinados, o ToUInt64(String, Int32) método pressupõe que value
seja expresso usando uma representação binária não assinada. Em outras palavras, todos os 64 bits são usados para representar o valor numérico e um bit de sinal está ausente. Como resultado, é possível escrever um código no qual um valor inteiro longo assinado que está fora do intervalo do tipo de UInt64 dados é convertido em um UInt64 valor sem que o método gere uma exceção. O exemplo a seguir converte em sua representação de cadeia de caracteres MinValue hexadecimal e chama o ToUInt64(String, Int32) método . Em vez de gerar uma exceção, o método exibe a mensagem "0x8000000000000000 converte em 9223372036854775808".
// Create a hexadecimal value out of range of the UInt64 type.
string value = Convert.ToString(Int64.MinValue, 16);
// Convert it back to a number.
try
{
UInt64 number = Convert.ToUInt64(value, 16);
Console.WriteLine("0x{0} converts to {1}.", value, number);
}
catch (OverflowException)
{
Console.WriteLine("Unable to convert '0x{0}' to an unsigned long integer.",
value);
}
// Create a hexadecimal value out of range of the UInt64 type.
let value = Convert.ToString(Int64.MinValue, 16)
// Convert it back to a number.
try
let number = Convert.ToUInt64(value, 16)
printfn $"0x{value} converts to {number}."
with :? OverflowException ->
printfn $"Unable to convert '0x{value}' to an unsigned long integer."
' Create a hexadecimal value out of range of the UInt64 type.
Dim value As String = Convert.ToString(Long.MinValue, 16)
' Convert it back to a number.
Try
Dim number As UInt64 = Convert.ToUInt64(value, 16)
Console.WriteLine("0x{0} converts to {1}.", value, number)
Catch e As OverflowException
Console.WriteLine("Unable to convert '0x{0}' to an unsigned long integer.", _
value)
End Try
Durante a realização de operações binárias ou conversões numéricas, sempre é responsabilidade do desenvolvedor verificar se um método ou operador está usando a representação numérica apropriada para interpretar um valor específico. O exemplo a seguir ilustra uma técnica para garantir que o método não use inadequadamente a representação binária para interpretar um valor que usa a representação complementar de dois ao converter uma cadeia de caracteres hexadecimal em um UInt64 valor. O exemplo determina se um valor representa um inteiro assinado ou não assinado enquanto converte esse valor na representação da cadeia de caracteres. Quando o exemplo converte o valor em um UInt64 valor, ele verifica se o valor original era um inteiro com sinal. Nesse caso, e se seu bit de alta ordem estiver definido (o que indica que o valor original foi negativo), o método gerará uma exceção.
// Create a negative hexadecimal value out of range of the UInt64 type.
long sourceNumber = Int64.MinValue;
bool isSigned = Math.Sign((long)sourceNumber.GetType().GetField("MinValue").GetValue(null)) == -1;
string value = Convert.ToString(sourceNumber, 16);
UInt64 targetNumber;
try
{
targetNumber = Convert.ToUInt64(value, 16);
if (isSigned && ((targetNumber & 0x8000000000000000) != 0))
throw new OverflowException();
else
Console.WriteLine("0x{0} converts to {1}.", value, targetNumber);
}
catch (OverflowException)
{
Console.WriteLine("Unable to convert '0x{0}' to an unsigned long integer.",
value);
}
// Displays the following to the console:
// Unable to convert '0x8000000000000000' to an unsigned long integer.
// Create a negative hexadecimal value out of range of the UInt64 type.
let sourceNumber = Int64.MinValue
let isSigned = sign (sourceNumber.GetType().GetField("MinValue").GetValue null :?> int64) = -1
let value = Convert.ToString(sourceNumber, 16)
try
let targetNumber = Convert.ToUInt64(value, 16)
if isSigned && targetNumber &&& 0x8000000000000000uL <> 0uL then
raise (OverflowException())
else
printfn $"0x{value} converts to {targetNumber}."
with :? OverflowException ->
printfn $"Unable to convert '0x{value}' to an unsigned long integer."
// Displays the following to the console:
// Unable to convert '0x8000000000000000' to an unsigned long integer.
' Create a negative hexadecimal value out of range of the UInt64 type.
Dim sourceNumber As Long = Long.MinValue
Dim isSigned As Boolean = Math.Sign(sourceNumber.MinValue) = -1
Dim value As String = Convert.ToString(sourceNumber, 16)
Dim targetNumber As UInt64
Try
targetNumber = Convert.ToUInt64(value, 16)
If isSigned And ((targetNumber And &H8000000000000000ul) <> 0) Then
Throw New OverflowException()
Else
Console.WriteLine("0x{0} converts to {1}.", value, targetNumber)
End If
Catch e As OverflowException
Console.WriteLine("Unable to convert '0x{0}' to an unsigned long integer.", _
value)
End Try
' Displays the following to the console:
' Unable to convert '0x8000' to an unsigned long integer.
Aplica-se a
ToUInt64(UInt64)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Retorna o inteiro sem sinal de 64 bits especificado; nenhuma conversão real é executada.
public:
static System::UInt64 ToUInt64(System::UInt64 value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (ulong value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : uint64 -> uint64
Public Shared Function ToUInt64 (value As ULong) As ULong
Parâmetros
- value
- UInt64
O inteiro sem sinal de 64 bits a ser retornado.
Retornos
value
é retornado inalterado.
- Atributos
Aplica-se a
ToUInt64(SByte)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do inteiro com sinal de 8 bits especificado no inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(System::SByte value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (sbyte value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : sbyte -> uint64
Public Shared Function ToUInt64 (value As SByte) As ULong
Parâmetros
- value
- SByte
O inteiro com sinal de 8 bits a ser convertido.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
.
- Atributos
Exceções
value
é menor que zero.
Exemplos
O exemplo a seguir tenta converter cada elemento em uma matriz de bytes assinada em um inteiro longo sem sinal.
sbyte[] numbers = { SByte.MinValue, -1, 0, 10, SByte.MaxValue };
ulong result;
foreach (sbyte number in numbers)
{
try {
result = Convert.ToUInt64(number);
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
number.GetType().Name, number,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.",
number.GetType().Name, number);
}
}
// The example displays the following output:
// The SByte value -128 is outside the range of the UInt64 type.
// The SByte value -1 is outside the range of the UInt64 type.
// Converted the SByte value 0 to the UInt64 value 0.
// Converted the SByte value 10 to the UInt64 value 10.
// Converted the SByte value 127 to the UInt64 value 127.
let numbers = [| SByte.MinValue; -1y; 0y; 10y; SByte.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn $"{number} is outside the range of the UInt64 type."
// The example displays the following output:
// -128 is outside the range of the UInt64 type.
// -1 is outside the range of the UInt64 type.
// Converted the SByte value '0' to the UInt64 value 0.
// Converted the SByte value '10' to the UInt64 value 10.
// Converted the SByte value '127' to the UInt64 value 127.
Dim numbers() As SByte = { SByte.MinValue, -1, 0, 10, SByte.MaxValue }
Dim result As ULong
For Each number As SByte In numbers
Try
result = Convert.ToUInt64(number)
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
number.GetType().Name, number, _
result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.", _
number.GetType().Name, number)
End Try
Next
' The example displays the following output:
' The SByte value -128 is outside the range of the UInt64 type.
' The SByte value -1 is outside the range of the UInt64 type.
' Converted the SByte value 0 to the UInt64 value 0.
' Converted the SByte value 10 to the UInt64 value 10.
' Converted the SByte value 127 to the UInt64 value 127.
Aplica-se a
ToUInt64(Int16)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do inteiro com sinal de 16 bits especificado no inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(short value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (short value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : int16 -> uint64
Public Shared Function ToUInt64 (value As Short) As ULong
Parâmetros
- value
- Int16
O inteiro assinado de 16 bits a ser convertido.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
.
- Atributos
Exceções
value
é menor que zero.
Exemplos
O exemplo a seguir tenta converter cada elemento em uma matriz de inteiros de 16 bits em um inteiro longo sem sinal.
short[] numbers= { Int16.MinValue, -1, 0, 121, 340, Int16.MaxValue };
ulong result;
foreach (short number in numbers)
{
try {
result = Convert.ToUInt64(number);
Console.WriteLine("Converted the {0} value {1} to a {2} value {3}.",
number.GetType().Name, number,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("{0} is outside the range of the UInt64 type.", number);
}
}
// The example displays the following output:
// -32768 is outside the range of the UInt64 type.
// -1 is outside the range of the UInt64 type.
// Converted the Int16 value 0 to a UInt64 value 0.
// Converted the Int16 value 121 to a UInt64 value 121.
// Converted the Int16 value 340 to a UInt64 value 340.
// Converted the Int16 value 32767 to a UInt64 value 32767.
let numbers = [| Int16.MinValue; -132s; 0s; 121s; 16103s; Int16.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt64 type."
// The example displays the following output:
// The Int16 value -32768 is outside the range of the UInt64 type.
// The Int16 value -132 is outside the range of the UInt64 type.
// Converted the Int16 value '0' to the UInt64 value 0.
// Converted the Int16 value '121' to the UInt64 value 121.
// Converted the Int16 value '16103' to the UInt64 value 16103.
// Converted the Int16 value '32767' to the UInt64 value 32767.
Dim numbers() As Short = { Int16.MinValue, -1, 0, 121, 340, Int16.MaxValue }
Dim result As ULong
For Each number As Short In numbers
Try
result = Convert.ToUInt64(number)
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
number.GetType().Name, number, _
result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.", _
number.GetType().Name, number)
End Try
Next
' The example displays the following output:
' The Int16 value -32768 is outside the range of the UInt64 type.
' The Int16 value -1 is outside the range of the UInt64 type.
' Converted the Int16 value 0 to the UInt64 value 0.
' Converted the Int16 value 121 to the UInt64 value 121.
' Converted the Int16 value 340 to the UInt64 value 340.
' Converted the Int16 value 32767 to the UInt64 value 32767.
Aplica-se a
ToUInt64(Int64)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do inteiro com sinal de 64 bits especificado em um inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(long value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (long value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : int64 -> uint64
Public Shared Function ToUInt64 (value As Long) As ULong
Parâmetros
- value
- Int64
O inteiro com sinal de 64 bits a ser convertido.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
.
- Atributos
Exceções
value
é menor que zero.
Exemplos
O exemplo a seguir tenta converter cada elemento em uma matriz de inteiros longos em um inteiro longo sem sinal.
long[] numbers = { Int64.MinValue, -19432, -18, 0, 121, 340, Int64.MaxValue };
ulong result;
foreach (long number in numbers)
{
try {
result = Convert.ToUInt64(number);
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
number.GetType().Name, number,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.",
number.GetType().Name, number);
}
}
// The example displays the following output:
// The Int64 value -9223372036854775808 is outside the range of the UInt64 type.
// The Int64 value -19432 is outside the range of the UInt64 type.
// The Int64 value -18 is outside the range of the UInt64 type.
// Converted the Int64 value 0 to the UInt64 value 0.
// Converted the Int64 value 121 to the UInt64 value 121.
// Converted the Int64 value 340 to the UInt64 value 340.
// Converted the Int64 value 9223372036854775807 to a UInt64 value 9223372036854775807.
let numbers = [| Int64.MinValue; -1; 0; 121; 340; Int64.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn "The {number.GetType().Name} value {number} is outside the range of the UInt64 type."
// The example displays the following output:
// The Int64 value -9223372036854775808 is outside the range of the UInt64 type.
// The Int64 value -1 is outside the range of the UInt64 type.
// Converted the Int64 value '0' to the UInt64 value 0.
// Converted the Int64 value '121' to the UInt64 value 121.
// Converted the Int64 value '340' to the UInt64 value 340.
// The Int64 value 9223372036854775807 is outside the range of the UInt64 type.
Dim numbers() As Long = { Int64.MinValue, -19432, -18, 0, 121, 340, Int64.MaxValue }
Dim result As ULong
For Each number As Long In numbers
Try
result = Convert.ToUInt64(number)
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
number.GetType().Name, number, _
result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.", _
number.GetType().Name, number)
End Try
Next
' The example displays the following output:
' The Int64 value -9223372036854775808 is outside the range of the UInt64 type.
' The Int64 value -19432 is outside the range of the UInt64 type.
' The Int64 value -18 is outside the range of the UInt64 type.
' Converted the Int64 value 0 to the UInt64 value 0.
' Converted the Int64 value 121 to the UInt64 value 121.
' Converted the Int64 value 340 to the UInt64 value 340.
' Converted the Int64 value 9223372036854775807 to the UInt64 value 9223372036854775807.
Aplica-se a
ToUInt64(Int32)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do inteiro com sinal de 32 bits especificado em um inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(int value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (int value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : int -> uint64
Public Shared Function ToUInt64 (value As Integer) As ULong
Parâmetros
- value
- Int32
O inteiro com sinal de 32 bits a converter.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
.
- Atributos
Exceções
value
é menor que zero.
Exemplos
O exemplo a seguir tenta converter cada elemento em uma matriz de inteiros em um inteiro longo sem sinal.
int[] numbers = { Int32.MinValue, -1, 0, 121, 340, Int32.MaxValue };
ulong result;
foreach (int number in numbers)
{
try {
result = Convert.ToUInt64(number);
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
number.GetType().Name, number,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.",
number.GetType().Name, number);
}
}
// The example displays the following output:
// The Int32 value -2147483648 is outside the range of the UInt64 type.
// The Int32 value -1 is outside the range of the UInt64 type.
// Converted the Int32 value 0 to the UInt64 value 0.
// Converted the Int32 value 121 to the UInt64 value 121.
// Converted the Int32 value 340 to the UInt64 value 340.
// Converted the Int32 value 2147483647 to the UInt64 value 2147483647.
let numbers = [| Int32.MinValue; -1; 0; 121; 340; Int32.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn "The {number.GetType().Name} value {number} is outside the range of the UInt64 type."
// The example displays the following output:
// The Int32 value -2147483648 is outside the range of the UInt64 type.
// The Int32 value -1 is outside the range of the UInt64 type.
// Converted the Int32 value '0' to the UInt64 value 0.
// Converted the Int32 value '121' to the UInt64 value 121.
// Converted the Int32 value '340' to the UInt64 value 340.
// The Int32 value 2147483647 is outside the range of the UInt64 type.
Dim numbers() As Integer = { Int32.MinValue, -1, 0, 121, 340, Int32.MaxValue }
Dim result As ULong
For Each number As Integer In numbers
Try
result = Convert.ToUInt64(number)
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
number.GetType().Name, number, _
result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.", _
number.GetType().Name, number)
End Try
Next
' The example displays the following output:
' The Int32 value -2147483648 is outside the range of the UInt64 type.
' The Int32 value -1 is outside the range of the UInt64 type.
' Converted the Int32 value 0 to the UInt64 value 0.
' Converted the Int32 value 121 to the UInt64 value 121.
' Converted the Int32 value 340 to the UInt64 value 340.
' Converted the Int32 value 2147483647 to the UInt64 value 2147483647.
Aplica-se a
ToUInt64(Double)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do número de ponto flutuante de precisão dupla especificado em um inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(double value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (double value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : double -> uint64
Public Shared Function ToUInt64 (value As Double) As ULong
Parâmetros
- value
- Double
O número de ponto flutuante de precisão dupla a ser convertido.
Retornos
value
, arredondado para o próximo inteiro sem sinal de 64 bits. Caso value
esteja entre dois números inteiros, o número par é retornado; ou seja, 4,5 é convertido em 4 e 5,5 é convertido em 6.
- Atributos
Exceções
value
é menor que zero ou maior que UInt64.MaxValue.
Exemplos
O exemplo a seguir tenta converter cada elemento em uma matriz de Double valores em um inteiro longo sem sinal.
double[] values= { Double.MinValue, -1.38e10, -1023.299, -12.98,
0, 9.113e-16, 103.919, 17834.191, Double.MaxValue };
ulong result;
foreach (double value in values)
{
try {
result = Convert.ToUInt64(value);
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
value.GetType().Name, value,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("{0} is outside the range of the UInt64 type.", value);
}
}
// The example displays the following output:
// -1.79769313486232E+308 is outside the range of the UInt64 type.
// -13800000000 is outside the range of the UInt64 type.
// -1023.299 is outside the range of the UInt64 type.
// -12.98 is outside the range of the UInt64 type.
// Converted the Double value '0' to the UInt64 value 0.
// Converted the Double value '9.113E-16' to the UInt64 value 0.
// Converted the Double value '103.919' to the UInt64 value 104.
// Converted the Double value '17834.191' to the UInt64 value 17834.
// 1.79769313486232E+308 is outside the range of the UInt64 type.
let numbers =
[| Double.MinValue; -1.38e10; -1023.299; -12.98
0; 9.113e-16; 103.919; 17834.191; Double.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn $"{number} is outside the range of the UInt64 type."
// The example displays the following output:
// -1.79769313486232E+308 is outside the range of the UInt64 type.
// -13800000000 is outside the range of the UInt64 type.
// -1023.299 is outside the range of the UInt64 type.
// -12.98 is outside the range of the UInt64 type.
// Converted the Double value '0' to the UInt64 value 0.
// Converted the Double value '9.113E-16' to the UInt64 value 0.
// Converted the Double value '103.919' to the UInt64 value 104.
// Converted the Double value '17834.191' to the UInt64 value 17834.
// 1.79769313486232E+308 is outside the range of the UInt64 type.
Dim values() As Double = { Double.MinValue, -1.38e10, -1023.299, -12.98, _
0, 9.113e-16, 103.919, 17834.191, Double.MaxValue }
Dim result As ULong
For Each value As Double In values
Try
result = Convert.ToUInt64(value)
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
value.GetType().Name, value, _
result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.", _
value.GetType().Name, value)
End Try
Next
' The example displays the following output:
' The Double value -1.79769313486232E+308 is outside the range of the UInt64 type.
' The Double value -13800000000 is outside the range of the UInt64 type.
' The Double value -1023.299 is outside the range of the UInt64 type.
' The Double value -12.98 is outside the range of the UInt64 type.
' Converted the Double value '0' to the UInt64 value 0.
' Converted the Double value '9.113E-16' to the UInt64 value 0.
' Converted the Double value '103.919' to the UInt64 value 104.
' Converted the Double value '17834.191' to the UInt64 value 17834.
' The Double value 1.79769313486232E+308 is outside the range of the UInt64 type.
Confira também
Aplica-se a
ToUInt64(Decimal)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do número decimal especificado em um inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(System::Decimal value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (decimal value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : decimal -> uint64
Public Shared Function ToUInt64 (value As Decimal) As ULong
Parâmetros
- value
- Decimal
O número decimal a ser convertido.
Retornos
value
, arredondado para o próximo inteiro sem sinal de 64 bits. Caso value
esteja entre dois números inteiros, o número par é retornado; ou seja, 4,5 é convertido em 4 e 5,5 é convertido em 6.
- Atributos
Exceções
value
é menor que zero ou maior que UInt64.MaxValue.
Exemplos
O exemplo a seguir tenta converter cada elemento em uma matriz de Decimal valores em um inteiro longo sem sinal.
decimal[] values= { Decimal.MinValue, -1034.23m, -12m, 0m, 147m,
199.55m, 9214.16m, Decimal.MaxValue };
ulong result;
foreach (decimal value in values)
{
try {
result = Convert.ToUInt64(value);
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
value.GetType().Name, value,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("{0} is outside the range of the UInt64 type.",
value);
}
}
// The example displays the following output:
// -79228162514264337593543950335 is outside the range of the UInt64 type.
// -1034.23 is outside the range of the UInt64 type.
// -12 is outside the range of the UInt64 type.
// Converted the Decimal value '0' to the UInt64 value 0.
// Converted the Decimal value '147' to the UInt64 value 147.
// Converted the Decimal value '199.55' to the UInt64 value 200.
// Converted the Decimal value '9214.16' to the UInt64 value 9214.
// 79228162514264337593543950335 is outside the range of the UInt64 type.
let numbers =
[| Decimal.MinValue; -1034.23m; -12m; 0m; 147m; 9214.16m; Decimal.MaxValue |]
for number in numbers do
try
let result = Convert.ToUInt16 number
printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn $"{number} is outside the range of the UInt64 type."
// The example displays the following output:
// -79228162514264337593543950335 is outside the range of the UInt64 type.
// -1034.23 is outside the range of the UInt64 type.
// -12 is outside the range of the UInt64 type.
// Converted the Decimal value '0' to the UInt64 value 0.
// Converted the Decimal value '147' to the UInt64 value 147.
// Converted the Decimal value '9214.16' to the UInt64 value 9214.
// 79228162514264337593543950335 is outside the range of the UInt64 type.
Dim values() As Decimal = { Decimal.MinValue, -1034.23d, -12d, 0d, 147d, _
199.55d, 9214.16d, Decimal.MaxValue }
Dim result As ULong
For Each value As Decimal In values
Try
result = Convert.ToUInt64(value)
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
value.GetType().Name, value, _
result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.", _
value.GetType().Name, value)
End Try
Next
' The example displays the following output:
' The Decimal value -79228162514264337593543950335 is outside the range of the UInt64 type.
' The Decimal value -1034.23 is outside the range of the UInt64 type.
' The Decimal value -12 is outside the range of the UInt64 type.
' Converted the Decimal value '0' to the UInt64 value 0.
' Converted the Decimal value '147' to the UInt64 value 147.
' Converted the Decimal value '199.55' to the UInt64 value 200.
' Converted the Decimal value '9214.16' to the UInt64 value 9214.
' The Decimal value 79228162514264337593543950335 is outside the range of the UInt64 type.
Confira também
Aplica-se a
ToUInt64(DateTime)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
A chamada desse método sempre lança InvalidCastException.
public:
static System::UInt64 ToUInt64(DateTime value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (DateTime value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : DateTime -> uint64
Public Shared Function ToUInt64 (value As DateTime) As ULong
Parâmetros
- value
- DateTime
O valor de data e tempo a ser convertido.
Retornos
Não há suporte para esta conversão. Nenhum valor é retornado.
- Atributos
Exceções
Não há suporte para esta conversão.
Aplica-se a
ToUInt64(Char)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do caractere Unicode especificado no inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(char value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (char value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : char -> uint64
Public Shared Function ToUInt64 (value As Char) As ULong
Parâmetros
- value
- Char
O caractere Unicode a ser convertido.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
.
- Atributos
Exemplos
O exemplo a seguir converte cada elemento em uma matriz de caracteres em um inteiro longo sem sinal.
char[] chars = { 'a', 'z', '\u0007', '\u03FF',
'\u7FFF', '\uFFFE' };
ulong result;
foreach (char ch in chars)
{
result = Convert.ToUInt64(ch);
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
ch.GetType().Name, ch,
result.GetType().Name, result);
}
// The example displays the following output:
// Converted the Char value 'a' to the UInt64 value 97.
// Converted the Char value 'z' to the UInt64 value 122.
// Converted the Char value '' to the UInt64 value 7.
// Converted the Char value '?' to the UInt64 value 1023.
// Converted the Char value '?' to the UInt64 value 32767.
// Converted the Char value '?' to the UInt64 value 65534.
let chars =
[| 'a'; 'z'; '\u0007'; '\u03FF'; '\u7FFF'; '\uFFFE' |]
for ch in chars do
try
let result = Convert.ToUInt16 ch
printfn $"Converted the {ch.GetType().Name} value '{ch}' to the {result.GetType().Name} value {result}."
with :? OverflowException ->
printfn $"Unable to convert u+{int ch:X4} to a UInt16."
// The example displays the following output:
// Converted the Char value 'a' to the UInt64 value 97.
// Converted the Char value 'z' to the UInt64 value 122.
// Converted the Char value '' to the UInt64 value 7.
// Converted the Char value '?' to the UInt64 value 1023.
// Converted the Char value '?' to the UInt64 value 32767.
// Converted the Char value '?' to the UInt64 value 65534.
Dim chars() As Char = { "a"c, "z"c, ChrW(7), ChrW(1023), _
ChrW(Short.MaxValue), ChrW(&hFFFE) }
Dim result As ULong
For Each ch As Char in chars
result = Convert.ToUInt64(ch)
Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
ch.GetType().Name, ch, _
result.GetType().Name, result)
Next
' The example displays the following output:
' Converted the Char value 'a' to the UInt64 value 97.
' Converted the Char value 'z' to the UInt64 value 122.
' Converted the Char value '' to the UInt64 value 7.
' Converted the Char value '?' to the UInt64 value 1023.
' Converted the Char value '?' to the UInt64 value 32767.
' Converted the Char value '?' to the UInt64 value 65534.
Aplica-se a
ToUInt64(Byte)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do inteiro sem sinal de 8 bits especificado no inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(System::Byte value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (byte value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : byte -> uint64
Public Shared Function ToUInt64 (value As Byte) As ULong
Parâmetros
- value
- Byte
O inteiro sem sinal de 8 bits a ser convertido.
Retornos
Um inteiro com sinal de 64 bits equivalente a value
.
- Atributos
Exemplos
O exemplo a seguir converte cada elemento em uma matriz de bytes em um inteiro longo sem sinal.
byte[] bytes = { Byte.MinValue, 14, 122, Byte.MaxValue};
ulong result;
foreach (byte byteValue in bytes)
{
result = Convert.ToUInt64(byteValue);
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
byteValue.GetType().Name, byteValue,
result.GetType().Name, result);
}
// The example displays the following output:
// Converted the Byte value 0 to the UInt64 value 0.
// Converted the Byte value 14 to the UInt64 value 14.
// Converted the Byte value 122 to the UInt64 value 122.
// Converted the Byte value 255 to the UInt64 value 255.
let bytes = [| Byte.MinValue; 14uy; 122uy; Byte.MaxValue |]
for byteValue in bytes do
let result = Convert.ToUInt16 byteValue
printfn $"Converted the {byteValue.GetType().Name} value '{byteValue}' to the {result.GetType().Name} value {result}."
// The example displays the following output:
// Converted the Byte value '0' to the UInt64 value 0.
// Converted the Byte value '14' to the UInt64 value 14.
// Converted the Byte value '122' to the UInt64 value 122.
// Converted the Byte value '255' to the UInt64 value 255.
Dim bytes() As Byte = { Byte.MinValue, 14, 122, Byte.MaxValue}
Dim result As ULong
For Each byteValue As Byte In bytes
result = Convert.ToUInt64(byteValue)
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
byteValue.GetType().Name, byteValue, _
result.GetType().Name, result)
Next
' The example displays the following output:
' Converted the Byte value 0 to the UInt64 value 0.
' Converted the Byte value 14 to the UInt64 value 14.
' Converted the Byte value 122 to the UInt64 value 122.
' Converted the Byte value 255 to the UInt64 value 255.
Aplica-se a
ToUInt64(Boolean)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor booliano especificado no inteiro sem sinal de 64 bits equivalente.
public:
static System::UInt64 ToUInt64(bool value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (bool value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : bool -> uint64
Public Shared Function ToUInt64 (value As Boolean) As ULong
Parâmetros
- value
- Boolean
O valor booliano a ser convertido.
Retornos
O número 1 caso value
seja true
; do contrário, 0.
- Atributos
Exemplos
O exemplo a seguir converte boolianos true
e false
valores em inteiros longos sem sinal.
bool falseFlag = false;
bool trueFlag = true;
Console.WriteLine("{0} converts to {1}.", falseFlag,
Convert.ToUInt64(falseFlag));
Console.WriteLine("{0} converts to {1}.", trueFlag,
Convert.ToUInt64(trueFlag));
// The example displays the following output:
// False converts to 0.
// True converts to 1.
let falseFlag = false
let trueFlag = true
printfn $"{falseFlag} converts to {Convert.ToInt32 falseFlag}."
printfn $"{trueFlag} converts to {Convert.ToInt32 trueFlag}."
// The example displays the following output:
// False converts to 0.
// True converts to 1.
Dim falseFlag As Boolean = False
Dim trueFlag As Boolean = True
Console.WriteLine("{0} converts to {1}.", falseFlag, _
Convert.ToUInt64(falseFlag))
Console.WriteLine("{0} converts to {1}.", trueFlag, _
Convert.ToUInt64(trueFlag))
' The example displays the following output:
' False converts to 0.
' True converts to 1.
Aplica-se a
ToUInt64(Object)
- Origem:
- Convert.cs
- Origem:
- Convert.cs
- Origem:
- Convert.cs
Importante
Esta API não está em conformidade com CLS.
Converte o valor do objeto especificado em um inteiro sem sinal de 64 bits.
public:
static System::UInt64 ToUInt64(System::Object ^ value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (object value);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (object? value);
[<System.CLSCompliant(false)>]
static member ToUInt64 : obj -> uint64
Public Shared Function ToUInt64 (value As Object) As ULong
Parâmetros
- value
- Object
Um objeto que implementa a interface IConvertible ou null
.
Retornos
Um inteiro sem sinal de 64 bits equivalente a value
ou zero, se value
for null
.
- Atributos
Exceções
value
não está em um formato adequado.
value
representa um número menor que UInt64.MinValue ou maior que UInt64.MaxValue.
Exemplos
O exemplo a seguir tenta converter cada elemento em uma matriz de objetos em um inteiro longo sem sinal.
object[] values = { true, -12, 163, 935, 'x', new DateTime(2009, 5, 12),
"104", "103.0", "-1",
"1.00e2", "One", 1.00e2, 16.3e42};
ulong result;
foreach (object value in values)
{
try {
result = Convert.ToUInt64(value);
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
value.GetType().Name, value,
result.GetType().Name, result);
}
catch (OverflowException) {
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.",
value.GetType().Name, value);
}
catch (FormatException) {
Console.WriteLine("The {0} value {1} is not in a recognizable format.",
value.GetType().Name, value);
}
catch (InvalidCastException) {
Console.WriteLine("No conversion to a UInt64 exists for the {0} value {1}.",
value.GetType().Name, value);
}
}
// The example displays the following output:
// Converted the Boolean value True to the UInt64 value 1.
// The Int32 value -12 is outside the range of the UInt64 type.
// Converted the Int32 value 163 to the UInt64 value 163.
// Converted the Int32 value 935 to the UInt64 value 935.
// Converted the Char value x to the UInt64 value 120.
// No conversion to a UInt64 exists for the DateTime value 5/12/2009 12:00:00 AM.
// Converted the String value 104 to the UInt64 value 104.
// The String value 103.0 is not in a recognizable format.
// The String value -1 is outside the range of the UInt64 type.
// The String value 1.00e2 is not in a recognizable format.
// The String value One is not in a recognizable format.
// Converted the Double value 100 to the UInt64 value 100.
// The Double value 1.63E+43 is outside the range of the UInt64 type.
let values: obj[] =
[| true; -12; 163; 935; 'x'; DateTime(2009, 5, 12)
"104"; "103.0"; "-1"; "1.00e2"; "One"; 1.00e2 |]
for value in values do
try
let result = Convert.ToUInt16 value
printfn $"Converted the {value.GetType().Name} value '{value}' to the {result.GetType().Name} value {result}."
with
| :? OverflowException ->
printfn $"The {value.GetType().Name} value {value} is outside the range of the UInt64 type."
| :? FormatException ->
printfn $"The {value.GetType().Name} value {value} is not in a recognizable format."
| :? InvalidCastException ->
printfn $"No conversion to a UInt16 exists for the {value.GetType().Name} value {value}."
// The example displays the following output:
// Converted the Boolean value 'True' to the UInt64 value 1.
// The Int32 value -12 is outside the range of the UInt64 type.
// Converted the Int32 value '163' to the UInt64 value 163.
// Converted the Int32 value '935' to the UInt64 value 935.
// Converted the Char value 'x' to the UInt64 value 120.
// No conversion to a UInt16 exists for the DateTime value 5/12/2009 12:00:00 AM.
// Converted the String value '104' to the UInt64 value 104.
// The String value 103.0 is not in a recognizable format.
// The String value -1 is outside the range of the UInt64 type.
// The String value 1.00e2 is not in a recognizable format.
// The String value One is not in a recognizable format.
// Converted the Double value '100' to the UInt64 value 100.
Dim values() As Object = { True, -12, 163, 935, "x"c, #5/12/2009#, _
"104", "103.0", "-1", _
"1.00e2", "One", 1.00e2, 16.3e42}
Dim result As ULong
For Each value As Object In values
Try
result = Convert.ToUInt64(value)
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
value.GetType().Name, value, _
result.GetType().Name, result)
Catch e As OverflowException
Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.", _
value.GetType().Name, value)
Catch e As FormatException
Console.WriteLine("The {0} value {1} is not in a recognizable format.", _
value.GetType().Name, value)
Catch e As InvalidCastException
Console.WriteLine("No conversion to a UInt64 exists for the {0} value {1}.", _
value.GetType().Name, value)
End Try
Next
' The example displays the following output:
' Converted the Boolean value True to the UInt64 value 1.
' The Int32 value -12 is outside the range of the UInt64 type.
' Converted the Int32 value 163 to the UInt64 value 163.
' Converted the Int32 value 935 to the UInt64 value 935.
' Converted the Char value x to the UInt64 value 120.
' No conversion to a UInt64 exists for the DateTime value 5/12/2009 12:00:00 AM.
' Converted the String value 104 to the UInt64 value 104.
' The String value 103.0 is not in a recognizable format.
' The String value -1 is outside the range of the UInt64 type.
' The String value 1.00e2 is not in a recognizable format.
' The String value One is not in a recognizable format.
' Converted the Double value 100 to the UInt64 value 100.
' The Double value 1.63E+43 is outside the range of the UInt64 type.
Comentários
O valor retornado é o resultado da invocação do IConvertible.ToUInt64 método do tipo subjacente de value
.