Decimal.ToUInt32 メソッド
指定した Decimal の値を、等価の 32 ビット符号なし整数に変換します。
このメソッドは、CLS と互換性がありません。CLS との互換性が必要な場合は、代わりに ToInt64 メンバを使用してください。CLS との互換性に関する詳細については 「共通言語仕様の概要」 を参照してください。
<CLSCompliant(False)>
Public Shared Function ToUInt32( _ ByVal d As Decimal _) As UInt32
[C#]
[CLSCompliant(false)]
public static uint ToUInt32(decimald);
[C++]
[CLSCompliant(false)]
public: static unsigned int ToUInt32(Decimald);
[JScript]
public
CLSCompliant(false)
static function ToUInt32(d : Decimal) : UInt32;
パラメータ
- d
変換する Decimal 値。
戻り値
d の値と等価な 32 ビット符号なし整数。
例外
| 例外の種類 | 条件 |
|---|---|
| OverflowException | d が負の値であるか、 UInt32.MaxValue よりも大きい値です。 |
解説
戻り値は 10 進値の整数部分です。小数の桁は切り捨てられます。
使用例
[Visual Basic, C#, C++] ToUInt32 メソッドを使用して、 Decimal の数値を UInt32 の値に変換するコード例を次に示します。
' Example of the Decimal.ToInt32 and Decimal.ToUInt32 methods.
Imports System
Imports Microsoft.VisualBasic
Module DecimalToU_Int32Demo
Dim formatter As String = "{0,17}{1,19}{2,19}"
' Get the exception type name; remove the namespace prefix.
Function GetExceptionType( ex As Exception ) As String
Dim exceptionType As String = ex.GetType( ).ToString( )
Return exceptionType.Substring( _
exceptionType.LastIndexOf( "."c ) + 1 )
End Function
' Convert the Decimal argument; catch exceptions that are thrown.
Sub DecimalToU_Int32( argument As Decimal )
Dim Int32Value As Object
Dim UInt32Value As Object
' Convert the argument to an Integer value.
Try
Int32Value = Decimal.ToInt32( argument )
Catch ex As Exception
Int32Value = GetExceptionType( ex )
End Try
' Convert the argument to a UInt32 value.
Try
UInt32Value = Decimal.ToUInt32( argument )
Catch ex As Exception
UInt32Value = GetExceptionType( ex )
End Try
Console.WriteLine( formatter, argument, _
Int32Value, UInt32Value )
End Sub
Sub Main( )
Console.WriteLine( "This example of the " & vbCrLf & _
" Decimal.ToInt32( Decimal ) and " & vbCrLf & _
" Decimal.ToUInt32( Decimal ) " & vbCrLf & "methods " & _
"generates the following output. It " & vbCrLf & _
"displays several converted Decimal values." & vbCrLf )
Console.WriteLine( formatter, "Decimal argument", _
"Integer/exception", "UInt32/exception" )
Console.WriteLine( formatter, "----------------", _
"-----------------", "----------------" )
' Convert Decimal values and display the results.
DecimalToU_Int32( 123D )
DecimalToU_Int32( New Decimal( 123000, 0, 0, False, 3 ) )
DecimalToU_Int32( 123.999D )
DecimalToU_Int32( 4294967295.999D )
DecimalToU_Int32( 4294967296D )
DecimalToU_Int32( 2147483647.999D )
DecimalToU_Int32( 2147483648D )
DecimalToU_Int32( - 0.999D )
DecimalToU_Int32( - 1D )
DecimalToU_Int32( - 2147483648.999D )
DecimalToU_Int32( - 2147483649D )
End Sub
End Module
' This example of the
' Decimal.ToInt32( Decimal ) and
' Decimal.ToUInt32( Decimal )
' methods generates the following output. It
' displays several converted Decimal values.
'
' Decimal argument Integer/exception UInt32/exception
' ---------------- ----------------- ----------------
' 123 123 123
' 123.000 123 123
' 123.999 123 123
' 4294967295.999 OverflowException 4294967295
' 4294967296 OverflowException OverflowException
' 2147483647.999 2147483647 2147483647
' 2147483648 OverflowException 2147483648
' -0.999 0 0
' -1 -1 OverflowException
' -2147483648.999 -2147483648 OverflowException
' -2147483649 OverflowException OverflowException
[C#]
// Example of the decimal.ToInt32 and decimal.ToUInt32 methods.
using System;
class DecimalToU_Int32Demo
{
const string formatter = "{0,17}{1,19}{2,19}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the decimal argument; catch exceptions that are thrown.
public static void DecimalToU_Int32( decimal argument )
{
object Int32Value;
object UInt32Value;
// Convert the argument to an int value.
try
{
Int32Value = decimal.ToInt32( argument );
}
catch( Exception ex )
{
Int32Value = GetExceptionType( ex );
}
// Convert the argument to a uint value.
try
{
UInt32Value = decimal.ToUInt32( argument );
}
catch( Exception ex )
{
UInt32Value = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument,
Int32Value, UInt32Value );
}
public static void Main( )
{
Console.WriteLine( "This example of the \n" +
" decimal.ToInt32( decimal ) and \n" +
" decimal.ToUInt32( decimal ) \nmethods " +
"generates the following output. It \ndisplays " +
"several converted decimal values.\n" );
Console.WriteLine( formatter, "decimal argument",
"int/exception", "uint/exception" );
Console.WriteLine( formatter, "----------------",
"-------------", "--------------" );
// Convert decimal values and display the results.
DecimalToU_Int32( 123M );
DecimalToU_Int32( new decimal( 123000, 0, 0, false, 3 ) );
DecimalToU_Int32( 123.999M );
DecimalToU_Int32( 4294967295.999M );
DecimalToU_Int32( 4294967296M );
DecimalToU_Int32( 2147483647.999M );
DecimalToU_Int32( 2147483648M );
DecimalToU_Int32( - 0.999M );
DecimalToU_Int32( - 1M );
DecimalToU_Int32( - 2147483648.999M );
DecimalToU_Int32( - 2147483649M );
}
}
/*
This example of the
decimal.ToInt32( decimal ) and
decimal.ToUInt32( decimal )
methods generates the following output. It
displays several converted decimal values.
decimal argument int/exception uint/exception
---------------- ------------- --------------
123 123 123
123.000 123 123
123.999 123 123
4294967295.999 OverflowException 4294967295
4294967296 OverflowException OverflowException
2147483647.999 2147483647 2147483647
2147483648 OverflowException 2147483648
-0.999 0 0
-1 -1 OverflowException
-2147483648.999 -2147483648 OverflowException
-2147483649 OverflowException OverflowException
*/
[C++]
// Example of the Decimal::ToInt32 and Decimal::ToUInt32 methods.
#using <mscorlib.dll>
using namespace System;
const __wchar_t* formatter = L"{0,17}{1,19}{2,19}";
// Get the exception type name; remove the namespace prefix.
String* GetExceptionType( Exception* ex )
{
String* exceptionType = ex->GetType( )->ToString( );
return exceptionType->Substring(
exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the Decimal argument; catch exceptions that are thrown.
void DecimalToU_Int32( Decimal argument )
{
Object* Int32Value;
Object* UInt32Value;
// Convert the argument to an int value.
try
{
Int32Value = __box( Decimal::ToInt32( argument ) );
}
catch( Exception* ex )
{
Int32Value = GetExceptionType( ex );
}
// Convert the argument to an unsigned int value.
try
{
UInt32Value = __box( Decimal::ToUInt32( argument ) );
}
catch( Exception* ex )
{
UInt32Value = GetExceptionType( ex );
}
Console::WriteLine( formatter, __box( argument ),
Int32Value, UInt32Value );
}
void main( )
{
Console::WriteLine( S"This example of the \n"
S" Decimal::ToInt32( Decimal ) and \n"
S" Decimal::ToUInt32( Decimal ) \nmethods "
S"generates the following output. It \ndisplays "
S"several converted Decimal values.\n" );
Console::WriteLine( formatter, S"Decimal argument",
S"int/exception", S"unsigned int" );
Console::WriteLine( formatter, S"----------------",
S"-------------", S"------------" );
// Convert Decimal values and display the results.
DecimalToU_Int32( Decimal::Parse( "123" ) );
DecimalToU_Int32( Decimal( 123000, 0, 0, false, 3 ) );
DecimalToU_Int32( Decimal::Parse( "123.999" ) );
DecimalToU_Int32( Decimal::Parse( "4294967295.999" ) );
DecimalToU_Int32( Decimal::Parse( "4294967296" ) );
DecimalToU_Int32( Decimal::Parse( "2147483647.999" ) );
DecimalToU_Int32( Decimal::Parse( "2147483648" ) );
DecimalToU_Int32( Decimal::Parse( "-0.999" ) );
DecimalToU_Int32( Decimal::Parse( "-1" ) );
DecimalToU_Int32( Decimal::Parse( "-2147483648.999" ) );
DecimalToU_Int32( Decimal::Parse( "-2147483649" ) );
}
/*
This example of the
Decimal::ToInt32( Decimal ) and
Decimal::ToUInt32( Decimal )
methods generates the following output. It
displays several converted Decimal values.
Decimal argument int/exception unsigned int
---------------- ------------- ------------
123 123 123
123.000 123 123
123.999 123 123
4294967295.999 OverflowException 4294967295
4294967296 OverflowException OverflowException
2147483647.999 2147483647 2147483647
2147483648 OverflowException 2147483648
-0.999 0 0
-1 -1 OverflowException
-2147483648.999 -2147483648 OverflowException
-2147483649 OverflowException OverflowException
*/
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必要条件
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET