Decimal.ToUInt64(Decimal) Decimal.ToUInt64(Decimal) Decimal.ToUInt64(Decimal) Decimal.ToUInt64(Decimal) Method

定義

重要

この API は CLS 準拠ではありません。

指定した Decimal の値を、等価の 64 ビット符号なし整数に変換します。Converts the value of the specified Decimal to the equivalent 64-bit unsigned integer.

public:
 static System::UInt64 ToUInt64(System::Decimal d);
[System.CLSCompliant(false)]
public static ulong ToUInt64 (decimal d);
static member ToUInt64 : decimal -> uint64
Public Shared Function ToUInt64 (d As Decimal) As ULong

パラメーター

d
Decimal Decimal Decimal Decimal

変換する 10 進数。The decimal number to convert.

戻り値

d の値と等価な 64 ビット符号なし整数。A 64-bit unsigned integer equivalent to the value of d.

例外

d が負か MaxValue を超えています。d is negative or greater than MaxValue.

次の例では、ToUInt64を 10 進数値に変換するメソッドUInt64値。The following example uses the ToUInt64 method to convert decimal numbers to UInt64 values.

using System;

class Example
{
   public static void Main( )
   {
      decimal[] values = { 123m, new Decimal(123000, 0, 0, false, 3), 
                           123.999m, 18446744073709551615.999m, 
                           18446744073709551616m, 9223372036854775807.999m, 
                           9223372036854775808m, -0.999m, -1m, 
                           -9223372036854775808.999m, 
                           -9223372036854775809m };
                     
      foreach (var value in values) {
         try {             
            ulong number = Decimal.ToUInt64(value);
            Console.WriteLine("{0} --> {1}", value, number);       
         }
         catch (OverflowException e)
         {
             Console.WriteLine("{0}: {1}", e.GetType().Name, value);
         }   
      }
   }
}
// The example displays the following output:
//     123 --> 123
//     123.000 --> 123
//     123.999 --> 123
//     18446744073709551615.999 --> 18446744073709551615
//     OverflowException: 18446744073709551616
//     9223372036854775807.999 --> 9223372036854775807
//     9223372036854775808 --> 9223372036854775808
//     -0.999 --> 0
//     OverflowException: -1
//     OverflowException: -9223372036854775808.999
//     OverflowException: -9223372036854775809
Module Example
   Public Sub Main()
      Dim values() As Decimal = { 123d, New Decimal(123000, 0, 0, false, 3), 
                                  123.999d, 18446744073709551615.999d, 
                                  18446744073709551616d, 9223372036854775807.999d, 
                                  9223372036854775808d, -0.999d, -1d, 
                                  -9223372036854775808.999d, 
                                  -9223372036854775809d }

      For Each value In values
         Try
            Dim number As ULong = Decimal.ToUInt64(value)
            Console.WriteLine("{0} --> {1}", value, number)       
         Catch e As OverflowException
             Console.WriteLine("{0}: {1}", e.GetType().Name, value)
         End Try   
      Next
   End Sub
End Module
' The example displays the following output:
'     123 --> 123
'     123.000 --> 123
'     123.999 --> 123
'     18446744073709551615.999 --> 18446744073709551615
'     OverflowException: 18446744073709551616
'     9223372036854775807.999 --> 9223372036854775807
'     9223372036854775808 --> 9223372036854775808
'     -0.999 --> 0
'     OverflowException: -1
'     OverflowException: -9223372036854775808.999
'     OverflowException: -9223372036854775809

注釈

戻り値は、10 進値の整数部分です。桁の小数部が切り捨てられます。The return value is the integral part of the decimal value; fractional digits are truncated.

変換することも、Decimalを使用して 64 ビット符号なし整数値、Explicit代入演算子。You can also convert a Decimal value to an 64-bit unsigned integer by using the Explicit assignment operator. 演算子は、縮小変換を実行するため、キャスト演算子 (C#) または Visual Basic での変換関数を使用する必要があります。Because the operator performs a narrowing conversion, you must use a casting operator in C# or a conversion function in Visual Basic.

適用対象

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