TimeSpan.FromHours Méthode

Source:

TimeSpan.cs

Source:

TimeSpan.cs

Source:

TimeSpan.cs

Source:

TimeSpan.cs

Source:

TimeSpan.cs

public:
 static TimeSpan FromHours(double value);

public static TimeSpan FromHours(double value);

static member FromHours : double -> TimeSpan

Public Shared Function FromHours (value As Double) As TimeSpan

Paramètres

Retours

Objet qui représente value.

Exceptions

Exemples

L’exemple suivant crée plusieurs TimeSpan objets à l’aide de la FromHours méthode.

// Example of the TimeSpan.FromHours( double ) method.
using System;

class FromHoursDemo
{
    static void GenTimeSpanFromHours( double hours )
    {
        // Create a TimeSpan object and TimeSpan string from 
        // a number of hours.
        TimeSpan    interval = TimeSpan.FromHours( hours );
        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}", hours, timeInterval );
    } 

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

        GenTimeSpanFromHours( 0.0000002 );
        GenTimeSpanFromHours( 0.0000003 );
        GenTimeSpanFromHours( 0.0012345 );
        GenTimeSpanFromHours( 12.3456789 );
        GenTimeSpanFromHours( 123456.7898765 );
        GenTimeSpanFromHours( 0.0002777 );
        GenTimeSpanFromHours( 0.0166666 );
        GenTimeSpanFromHours( 1 );
        GenTimeSpanFromHours( 24 );
        GenTimeSpanFromHours( 500.3389445 );
    } 
} 

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

            FromHours          TimeSpan
            ---------          --------
                2E-07          00:00:00.0010000
                3E-07          00:00:00.0010000
            0.0012345          00:00:04.4440000
           12.3456789          12:20:44.4440000
       123456.7898765     5144.00:47:23.5550000
            0.0002777          00:00:01
            0.0166666          00:01:00
                    1          01:00:00
                   24        1.00:00:00
          500.3389445       20.20:20:20.2000000
*/

// Example of the TimeSpan.FromHours( double ) method.
open System

let genTimeSpanFromHours hours =
    // Create a TimeSpan object and TimeSpan string from 
    // a number of hours.
    let interval = TimeSpan.FromHours hours
    let timeInterval = string interval

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

    printfn $"{hours,21}{timeInterval,26}"

printfn "This example of TimeSpan.FromHours( double )\ngenerates the following output.\n"
printfn "%21s%18s" "FromHours" "TimeSpan"
printfn "%21s%18s" "---------" "--------"

genTimeSpanFromHours 0.0000002
genTimeSpanFromHours 0.0000003
genTimeSpanFromHours 0.0012345
genTimeSpanFromHours 12.3456789
genTimeSpanFromHours 123456.7898765
genTimeSpanFromHours 0.0002777
genTimeSpanFromHours 0.0166666
genTimeSpanFromHours 1
genTimeSpanFromHours 24
genTimeSpanFromHours 500.3389445

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

            FromHours          TimeSpan
            ---------          --------
                2E-07          00:00:00.0010000
                3E-07          00:00:00.0010000
            0.0012345          00:00:04.4440000
           12.3456789          12:20:44.4440000
       123456.7898765     5144.00:47:23.5550000
            0.0002777          00:00:01
            0.0166666          00:01:00
                    1          01:00:00
                   24        1.00:00:00
          500.3389445       20.20:20:20.2000000
*)

' Example of the TimeSpan.FromHours( Double ) method.
Module FromHoursDemo

    Sub GenTimeSpanFromHours( hours As Double )

        ' Create a TimeSpan object and TimeSpan string from 
        ' a number of hours.
        Dim interval As TimeSpan = _
            TimeSpan.FromHours( hours )
        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}", hours, timeInterval )
    End Sub 

    Sub Main( )

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

        GenTimeSpanFromHours( 0.0000002 )
        GenTimeSpanFromHours( 0.0000003 )
        GenTimeSpanFromHours( 0.0012345 )
        GenTimeSpanFromHours( 12.3456789 )
        GenTimeSpanFromHours( 123456.7898765 )
        GenTimeSpanFromHours( 0.0002777 )
        GenTimeSpanFromHours( 0.0166666 )
        GenTimeSpanFromHours( 1 )
        GenTimeSpanFromHours( 24 )
        GenTimeSpanFromHours( 500.3389445 )
    End Sub 
End Module 

' This example of TimeSpan.FromHours( Double )
' generates the following output.
' 
'             FromHours          TimeSpan
'             ---------          --------
'                 2E-07          00:00:00.0010000
'                 3E-07          00:00:00.0010000
'             0.0012345          00:00:04.4440000
'            12.3456789          12:20:44.4440000
'        123456.7898765     5144.00:47:23.5550000
'             0.0002777          00:00:01
'             0.0166666          00:01:00
'                     1          01:00:00
'                    24        1.00:00:00
'           500.3389445       20.20:20:20.2000000

Remarques

Le value paramètre est converti en millisecondes, qui est converti en graduations, et ce nombre de graduations est utilisé pour initialiser le nouveau TimeSpan. Par conséquent, value elle est considérée comme exacte à la milliseconde la plus proche. Notez que, en raison de la perte de précision du type de Double données, cette conversion peut générer une OverflowException valeur pour les valeurs proches mais toujours dans la plage de l’un ou l’autre MinValueMaxValue. Par exemple, cela provoque une OverflowException tentative suivante d’instancier un TimeSpan objet.

// The following throws an OverflowException at runtime
TimeSpan maxSpan = TimeSpan.FromHours(TimeSpan.MaxValue.TotalHours);

// The following throws an OverflowException at runtime
let maxSpan = TimeSpan.FromHours TimeSpan.MaxValue.TotalHours

' The following throws an OverflowException at runtime
Dim maxSpan As TimeSpan = TimeSpan.FromHours(TimeSpan.MaxValue.TotalHours)

Voir aussi

• Double
• FromTicks(Int64)
• FromMilliseconds(Double)
• FromSeconds(Double)
• FromMinutes(Double)
• FromDays(Double)

Source:

TimeSpan.cs

Source:

TimeSpan.cs

Source:

TimeSpan.cs

public:
 static TimeSpan FromHours(int hours);

public static TimeSpan FromHours(int hours);

static member FromHours : int -> TimeSpan

Public Shared Function FromHours (hours As Integer) As TimeSpan

Paramètres

Retours

Retourne une TimeSpan valeur qui représente un nombre d’heures spécifié.

Exceptions

Source:

TimeSpan.cs

Source:

TimeSpan.cs

Source:

TimeSpan.cs

public static TimeSpan FromHours(int hours, long minutes = 0, long seconds = 0, long milliseconds = 0, long microseconds = 0);

static member FromHours : int * int64 * int64 * int64 * int64 -> TimeSpan

Public Shared Function FromHours (hours As Integer, Optional minutes As Long = 0, Optional seconds As Long = 0, Optional milliseconds As Long = 0, Optional microseconds As Long = 0) As TimeSpan

Paramètres

Retours

Retourne une TimeSpan valeur qui représente un nombre spécifié d’heures, de minutes, de secondes, de millisecondes et de microsecondes.

Exceptions