TimeSpan.FromMilliseconds(Double) メソッド

定義

指定されたミリ秒数を表す TimeSpan を返します。Returns a TimeSpan that represents a specified number of milliseconds.

public:
 static TimeSpan FromMilliseconds(double value);
public static TimeSpan FromMilliseconds (double value);
static member FromMilliseconds : double -> TimeSpan
Public Shared Function FromMilliseconds (value As Double) As TimeSpan

パラメーター

value
Double

ミリ秒数。A number of milliseconds.

戻り値

value を表すオブジェクト。An object that represents value.

例外

valueMinValue より小さいか MaxValue より大きいです。value is less than MinValue or greater than MaxValue.

- または --or- valuePositiveInfinityです。value is PositiveInfinity.

- または --or- valueNegativeInfinityです。value is NegativeInfinity.

valueNaN が等価です。value is equal to NaN.

次の例では、FromMilliseconds メソッドを使用して、複数の TimeSpan オブジェクトを作成します。The following example creates several TimeSpan objects by using the FromMilliseconds method.

// Example of the TimeSpan::FromMilliseconds( double ) method.
using namespace System;
void GenTimeSpanFromMillisec( Double millisec )
{
   
   // Create a TimeSpan object and TimeSpan string from 
   // a number of milliseconds.
   TimeSpan interval = TimeSpan::FromMilliseconds( millisec );
   String^ timeInterval = interval.ToString();
   
   // Pad the end of the TimeSpan string with spaces if it 
   // does not contain milliseconds.
   int pIndex = timeInterval->IndexOf( ':' );
   pIndex = timeInterval->IndexOf( '.', pIndex );
   if ( pIndex < 0 )
      timeInterval = String::Concat( timeInterval, "        " );

   Console::WriteLine( "{0,21}{1,26}", millisec, timeInterval );
}

int main()
{
   Console::WriteLine( "This example of TimeSpan::FromMilliseconds( double )\n"
   "generates the following output.\n" );
   Console::WriteLine( "{0,21}{1,18}", "FromMilliseconds", "TimeSpan" );
   Console::WriteLine( "{0,21}{1,18}", "----------------", "--------" );
   GenTimeSpanFromMillisec( 1 );
   GenTimeSpanFromMillisec( 1.5 );
   GenTimeSpanFromMillisec( 12345.6 );
   GenTimeSpanFromMillisec( 123456789.8 );
   GenTimeSpanFromMillisec( 1234567898765.4 );
   GenTimeSpanFromMillisec( 1000 );
   GenTimeSpanFromMillisec( 60000 );
   GenTimeSpanFromMillisec( 3600000 );
   GenTimeSpanFromMillisec( 86400000 );
   GenTimeSpanFromMillisec( 1801220200 );
}

/*
This example of TimeSpan::FromMilliseconds( double )
generates the following output.

     FromMilliseconds          TimeSpan
     ----------------          --------
                    1          00:00:00.0010000
                  1.5          00:00:00.0020000
              12345.6          00:00:12.3460000
          123456789.8        1.10:17:36.7900000
      1234567898765.4    14288.23:31:38.7650000
                 1000          00:00:01
                60000          00:01:00
              3600000          01:00:00
             86400000        1.00:00:00
           1801220200       20.20:20:20.2000000
*/
// Example of the TimeSpan.FromMilliseconds( double ) method.
using System;

class FromMillisecDemo
{
    static void GenTimeSpanFromMillisec( Double millisec )
    {
        // Create a TimeSpan object and TimeSpan string from 
        // a number of milliseconds.
        TimeSpan    interval = TimeSpan.FromMilliseconds( millisec );
        string      timeInterval = interval.ToString( );

        // Pad the end of the TimeSpan string with spaces if it 
        // does not contain milliseconds.
        int pIndex = timeInterval.IndexOf( ':' );
        pIndex = timeInterval.IndexOf( '.', pIndex );
        if( pIndex < 0 )   timeInterval += "        ";

        Console.WriteLine( "{0,21}{1,26}", millisec, timeInterval );
    } 

    static void Main( )
    {
        Console.WriteLine(
            "This example of TimeSpan.FromMilliseconds( " +
            "double )\ngenerates the following output.\n" );
        Console.WriteLine( "{0,21}{1,18}", 
            "FromMilliseconds", "TimeSpan" );
        Console.WriteLine( "{0,21}{1,18}", 
            "----------------", "--------" );

        GenTimeSpanFromMillisec( 1 );
        GenTimeSpanFromMillisec( 1.5 );
        GenTimeSpanFromMillisec( 12345.6 );
        GenTimeSpanFromMillisec( 123456789.8 );
        GenTimeSpanFromMillisec( 1234567898765.4 );
        GenTimeSpanFromMillisec( 1000 );
        GenTimeSpanFromMillisec( 60000 );
        GenTimeSpanFromMillisec( 3600000 );
        GenTimeSpanFromMillisec( 86400000 );
        GenTimeSpanFromMillisec( 1801220200 );
    } 
} 

/*
This example of TimeSpan.FromMilliseconds( double )
generates the following output.

     FromMilliseconds          TimeSpan
     ----------------          --------
                    1          00:00:00.0010000
                  1.5          00:00:00.0020000
              12345.6          00:00:12.3460000
          123456789.8        1.10:17:36.7900000
      1234567898765.4    14288.23:31:38.7650000
                 1000          00:00:01
                60000          00:01:00
              3600000          01:00:00
             86400000        1.00:00:00
           1801220200       20.20:20:20.2000000
*/
' Example of the TimeSpan.FromMilliseconds( Double ) method.
Module FromMillisecDemo

    Sub GenTimeSpanFromMillisec( millisec As Double )

        ' Create a TimeSpan object and TimeSpan string from 
        ' a number of milliseconds.
        Dim interval As TimeSpan = _
            TimeSpan.FromMilliseconds( millisec )
        Dim timeInterval As String = interval.ToString( )

        ' Pad the end of the TimeSpan string with spaces if it 
        ' does not contain milliseconds.
        Dim pIndex As Integer = timeInterval.IndexOf( ":"c )
        pIndex = timeInterval.IndexOf( "."c, pIndex )
        If pIndex < 0 Then   timeInterval &= "        "

        Console.WriteLine( "{0,21}{1,26}", millisec, timeInterval )
    End Sub 

    Sub Main( )

        Console.WriteLine( "This example of " & _
            "TimeSpan.FromMilliseconds( Double )" & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,21}{1,18}", _
            "FromMilliseconds", "TimeSpan" )    
        Console.WriteLine( "{0,21}{1,18}", _
            "----------------", "--------" )    

        GenTimeSpanFromMillisec( 1 )
        GenTimeSpanFromMillisec( 1.5 )
        GenTimeSpanFromMillisec( 12345.6 )
        GenTimeSpanFromMillisec( 123456789.8 )
        GenTimeSpanFromMillisec( 1234567898765.4 )
        GenTimeSpanFromMillisec( 1000 )
        GenTimeSpanFromMillisec( 60000 )
        GenTimeSpanFromMillisec( 3600000 )
        GenTimeSpanFromMillisec( 86400000 )
        GenTimeSpanFromMillisec( 1801220200 )
    End Sub 
End Module 

' This example of TimeSpan.FromMilliseconds( Double )
' generates the following output.
' 
'      FromMilliseconds          TimeSpan
'      ----------------          --------
'                     1          00:00:00.0010000
'                   1.5          00:00:00.0020000
'               12345.6          00:00:12.3460000
'           123456789.8        1.10:17:36.7900000
'       1234567898765.4    14288.23:31:38.7650000
'                  1000          00:00:01
'                 60000          00:01:00
'               3600000          01:00:00
'              86400000        1.00:00:00
'            1801220200       20.20:20:20.2000000

注釈

value パラメーターはティックに変換され、このタイマー刻みの数を使用して新しい TimeSpanが初期化されます。The value parameter is converted to ticks, and that number of ticks is used to initialize the new TimeSpan. したがって、value は、ミリ秒単位で正確に見なされます。Therefore, value will only be considered accurate to the nearest millisecond. Double データ型の精度が失われているため、この変換では、の近くにあり、MinValue または MaxValueの範囲内にある値に対して OverflowException が生成される可能性があることに注意してください。Note that, because of the loss of precision of the Double data type, this conversion can generate an OverflowException for values that are near to but still in the range of either MinValue or MaxValue. たとえば、次のような場合に、TimeSpan オブジェクトをインスタンス化しようとすると OverflowException が発生します。For example, this causes an OverflowException in the following attempt to instantiate a TimeSpan object.

// The following throws an OverflowException at runtime
TimeSpan maxSpan = TimeSpan.FromMilliseconds(TimeSpan.MaxValue.TotalMilliseconds);
' The following throws an OverflowException at runtime
Dim maxSpan As TimeSpan = TimeSpan.FromMilliseconds(TimeSpan.MaxValue.TotalMilliseconds)

適用対象

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