Decimal.ToUInt64(Decimal) メソッド

定義

この API は CLS 準拠ではありません。

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

d
Decimal

戻り値

UInt64

`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.

例

``````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

Decimal代入演算子を使用して、値を64ビット符号なし整数に変換することもでき Explicit ます。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、キャスト演算子を C# で使用するか、Visual Basic 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.