指定したミリ秒数を表す TimeSpan を返します。
Public Shared Function FromMilliseconds( _
ByVal value As Double _) As TimeSpan
[C#]
public static TimeSpan FromMilliseconds(doublevalue);
[C++]
public: static TimeSpan FromMilliseconds(doublevalue);
[JScript]
public static function FromMilliseconds(
value : double) : TimeSpan;
パラメータ
- value
ミリ秒数。
戻り値
value を表す TimeSpan 。
例外
| 例外の種類 | 条件 |
|---|---|
| OverflowException | value が MinValue より小さい値か、 MaxValue より大きい値です。 |
| ArgumentException | value と Double.NaN が等しい。 |
解説
value パラメータはタイマ刻みに変換され、このタイマ刻みの数を使用して新しい TimeSpan が初期化されます。したがって、value は、ミリ秒単位の精度であると見なされます。
value が Double.PositiveInfinity の場合は、 MaxValue が返されます。 value が Double.NegativeInfinity の場合は、 MinValue が返されます。
使用例
[Visual Basic, C#, C++] FromMilliseconds メソッドを使用して、複数の TimeSpan オブジェクトを作成するコード例を次に示します。
' Example of the TimeSpan.FromMilliseconds( Double ) method.
Imports System
Imports Microsoft.VisualBasic
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
[C#]
// 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
*/
[C++]
// Example of the TimeSpan::FromMilliseconds( double ) method.
#using <mscorlib.dll>
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, S" " );
Console::WriteLine( S"{0,21}{1,26}", __box( millisec ),
timeInterval );
}
void main( )
{
Console::WriteLine(
S"This example of TimeSpan::FromMilliseconds( double )\n"
S"generates the following output.\n" );
Console::WriteLine( S"{0,21}{1,18}",
S"FromMilliseconds", S"TimeSpan" );
Console::WriteLine( S"{0,21}{1,18}",
S"----------------", S"--------" );
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
*/
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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, Common Language Infrastructure (CLI) Standard
参照
TimeSpan 構造体 | TimeSpan メンバ | System 名前空間 | Double | FromTicks | FromSeconds | FromMinutes | FromHours | FromDays