TimeSpan.FromMilliseconds(Double) メソッド
定義
public:
static TimeSpan FromMilliseconds(double value);public static TimeSpan FromMilliseconds (double value);static member FromMilliseconds : double -> TimeSpanPublic 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
value が MinValue 未満であるか、MaxValue を超えています。value is less than MinValue or greater than MaxValue.
または-or-
value が PositiveInfinity です。value is PositiveInfinity.
または-or-
value が NegativeInfinity です。value is NegativeInfinity.
例
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)