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Développement .NET
.NET Framework 3.5
.NET Framework
Bibliothèque de classes ....
System, espace de noms
TimeSpan, structure
Champs TimeSpan
 Zero, champ

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Microsoft Visual Studio 2008/.NET Framework 3.5

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Bibliothèque de classes .NET Framework
TimeSpan..::.Zero, champ

Mise à jour : novembre 2007

Représente la valeur zéro de TimeSpan. Ce champ est en lecture seule.

Espace de noms :  System
Assembly :  mscorlib (dans mscorlib.dll)
Visual Basic (Déclaration)
Public Shared ReadOnly Zero As TimeSpan
Visual Basic (Utilisation)
Dim value As TimeSpan

value = TimeSpan.Zero
C#
public static readonly TimeSpan Zero
VisualC++
public:
static initonly TimeSpan Zero
J#
public static final TimeSpan Zero
JScript
public static final var Zero : TimeSpan

Parce qu'elle retourne un objet TimeSpan qui représente une valeur d'heure nulle, la propriété Zero peut être comparée avec d'autres objets TimeSpan pour déterminer si les derniers représentent des intervalles de temps positifs, non nuls ou négatifs.

L'exemple de code suivant fait référence à la valeur du champ Zero et l'affiche.

Visual Basic
' Example of the TimeSpan fields.
Imports System
Imports Microsoft.VisualBasic

Module TimeSpanFieldsDemo

    ' Pad the end of a TimeSpan string with spaces if it does not 
    ' contain milliseconds.
    Function Align( interval As TimeSpan ) As String

        Dim intervalStr As String = interval.ToString( )
        Dim pointIndex  As Integer = intervalStr.IndexOf( ":"c )

        pointIndex = intervalStr.IndexOf( "."c, pointIndex )
        If pointIndex < 0 Then intervalStr &= "        "
        Align = intervalStr
    End Function

    Sub Main( )

        Const numberFmt As String = "{0,-22}{1,18:N0}"
        Const timeFmt As String = "{0,-22}{1,26}"

        Console.WriteLine( _
            "This example of the fields of the TimeSpan class" & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( numberFmt, "Field", "Value" )
        Console.WriteLine( numberFmt, "-----", "-----" )

        ' Display the maximum, minimum, and zero TimeSpan values.
        Console.WriteLine( timeFmt, "Maximum TimeSpan", _
            Align( TimeSpan.MaxValue ) )
        Console.WriteLine( timeFmt, "Minimum TimeSpan", _
            Align( TimeSpan.MinValue ) )
        Console.WriteLine( timeFmt, "Zero TimeSpan", _
            Align( TimeSpan.Zero ) )
        Console.WriteLine( )

        ' Display the ticks-per-time-unit fields.
        Console.WriteLine( numberFmt, "Ticks per day", _
            TimeSpan.TicksPerDay )
        Console.WriteLine( numberFmt, "Ticks per hour", _
            TimeSpan.TicksPerHour )
        Console.WriteLine( numberFmt, "Ticks per minute", _
            TimeSpan.TicksPerMinute )
        Console.WriteLine( numberFmt, "Ticks per second", _
            TimeSpan.TicksPerSecond )
        Console.WriteLine( numberFmt, "Ticks per millisecond", _
            TimeSpan.TicksPerMillisecond )
    End Sub 
End Module 

' This example of the fields of the TimeSpan class
' generates the following output.
' 
' Field                              Value
' -----                              -----
' Maximum TimeSpan       10675199.02:48:05.4775807
' Minimum TimeSpan      -10675199.02:48:05.4775808
' Zero TimeSpan                   00:00:00
' 
' Ticks per day            864,000,000,000
' Ticks per hour            36,000,000,000
' Ticks per minute             600,000,000
' Ticks per second              10,000,000
' Ticks per millisecond             10,000

C#
// Example of the TimeSpan fields.
using System;

class TimeSpanFieldsDemo
{
    // Pad the end of a TimeSpan string with spaces if it does not 
    // contain milliseconds.
    static string Align( TimeSpan interval )
    {
        string  intervalStr = interval.ToString( );
        int     pointIndex = intervalStr.IndexOf( ':' );

        pointIndex = intervalStr.IndexOf( '.', pointIndex );
        if( pointIndex < 0 ) intervalStr += "        ";
        return intervalStr;
    } 

    static void Main( )
    {
        const string numberFmt = "{0,-22}{1,18:N0}" ;
        const string timeFmt = "{0,-22}{1,26}" ;

        Console.WriteLine( 
            "This example of the fields of the TimeSpan class" +
            "\ngenerates the following output.\n" );
        Console.WriteLine( numberFmt, "Field", "Value" );
        Console.WriteLine( numberFmt, "-----", "-----" );

        // Display the maximum, minimum, and zero TimeSpan values.
        Console.WriteLine( timeFmt, "Maximum TimeSpan", 
            Align( TimeSpan.MaxValue ) );
        Console.WriteLine( timeFmt, "Minimum TimeSpan", 
            Align( TimeSpan.MinValue ) );
        Console.WriteLine( timeFmt, "Zero TimeSpan", 
            Align( TimeSpan.Zero ) );
        Console.WriteLine( );

        // Display the ticks-per-time-unit fields.
        Console.WriteLine( numberFmt, "Ticks per day", 
            TimeSpan.TicksPerDay );
        Console.WriteLine( numberFmt, "Ticks per hour", 
            TimeSpan.TicksPerHour );
        Console.WriteLine( numberFmt, "Ticks per minute", 
            TimeSpan.TicksPerMinute );
        Console.WriteLine( numberFmt, "Ticks per second", 
            TimeSpan.TicksPerSecond );
        Console.WriteLine( numberFmt, "Ticks per millisecond", 
            TimeSpan.TicksPerMillisecond );
    }
} 

/*
This example of the fields of the TimeSpan class
generates the following output.

Field                              Value
-----                              -----
Maximum TimeSpan       10675199.02:48:05.4775807
Minimum TimeSpan      -10675199.02:48:05.4775808
Zero TimeSpan                   00:00:00

Ticks per day            864,000,000,000
Ticks per hour            36,000,000,000
Ticks per minute             600,000,000
Ticks per second              10,000,000
Ticks per millisecond             10,000
*/

VisualC++
// Example of the TimeSpan fields.
using namespace System;

// Pad the end of a TimeSpan string with spaces if it does not 
// contain milliseconds.
String^ Align( TimeSpan interval )
{
   String^ intervalStr = interval.ToString();
   int pointIndex = intervalStr->IndexOf( ':' );
   pointIndex = intervalStr->IndexOf( '.', pointIndex );
   if ( pointIndex < 0 )
      intervalStr = String::Concat( intervalStr, "        " );

   return intervalStr;
}

int main()
{
   String^ numberFmt = "{0,-22}{1,18:N0}";
   String^ timeFmt = "{0,-22}{1,26}";
   Console::WriteLine( "This example of the fields of the TimeSpan class"
   "\ngenerates the following output.\n" );
   Console::WriteLine( numberFmt, "Field", "Value" );
   Console::WriteLine( numberFmt, "-----", "-----" );

   // Display the maximum, minimum, and zero TimeSpan values.
   Console::WriteLine( timeFmt, "Maximum TimeSpan", Align( TimeSpan::MaxValue ) );
   Console::WriteLine( timeFmt, "Minimum TimeSpan", Align( TimeSpan::MinValue ) );
   Console::WriteLine( timeFmt, "Zero TimeSpan", Align( TimeSpan::Zero ) );
   Console::WriteLine();

   // Display the ticks-per-time-unit fields.
   Console::WriteLine( numberFmt, "Ticks per day", TimeSpan::TicksPerDay );
   Console::WriteLine( numberFmt, "Ticks per hour", TimeSpan::TicksPerHour );
   Console::WriteLine( numberFmt, "Ticks per minute", TimeSpan::TicksPerMinute );
   Console::WriteLine( numberFmt, "Ticks per second", TimeSpan::TicksPerSecond );
   Console::WriteLine( numberFmt, "Ticks per millisecond", TimeSpan::TicksPerMillisecond );
}

/*
This example of the fields of the TimeSpan class
generates the following output.

Field                              Value
-----                              -----
Maximum TimeSpan       10675199.02:48:05.4775807
Minimum TimeSpan      -10675199.02:48:05.4775808
Zero TimeSpan                   00:00:00

Ticks per day            864,000,000,000
Ticks per hour            36,000,000,000
Ticks per minute             600,000,000
Ticks per second              10,000,000
Ticks per millisecond             10,000
*/

J#
// Example of the TimeSpan fields.
import System.*;

class TimeSpanFieldsDemo
{
    // Pad the end of a TimeSpan string with spaces if it does not 
    // contain milliseconds.
    static String Align(TimeSpan interval)
    {
        String intervalStr = interval.ToString();
        int pointIndex = intervalStr.IndexOf(':');

        pointIndex = intervalStr.IndexOf('.', pointIndex);
        if (pointIndex < 0) {
            intervalStr += "        ";
        }
        return intervalStr;
    } //Align

    public static void main(String[] args)
    {
        final String numberFmt = "{0,-22}{1,18}";
        final String timeFmt = "{0,-22}{1,26}";

        Console.WriteLine(("This example of the fields of the TimeSpan class" 
            + "\ngenerates the following output.\n"));
        Console.WriteLine(numberFmt, "Field", "Value");
        Console.WriteLine(numberFmt, "-----", "-----");

        // Display the maximum, minimum, and zero TimeSpan values.
        Console.WriteLine(timeFmt, "Maximum TimeSpan", 
            Align(TimeSpan.MaxValue));
        Console.WriteLine(timeFmt, "Minimum TimeSpan",
            Align(TimeSpan.MinValue));
        Console.WriteLine(timeFmt, "Zero TimeSpan", Align(TimeSpan.Zero));
        Console.WriteLine();

        // Display the ticks-per-time-unit fields.
        Console.WriteLine(numberFmt, "Ticks per day", 
            ((System.Int64)TimeSpan.TicksPerDay).ToString("N0"));
        Console.WriteLine(numberFmt, "Ticks per hour", 
            ((System.Int64)TimeSpan.TicksPerHour).ToString("N0"));
        Console.WriteLine(numberFmt, "Ticks per minute", 
            ((System.Int64)TimeSpan.TicksPerMinute).ToString("N0"));
        Console.WriteLine(numberFmt, "Ticks per second", 
            ((System.Int64)TimeSpan.TicksPerSecond).ToString("N0"));
        Console.WriteLine(numberFmt, "Ticks per millisecond", 
            ((System.Int64)TimeSpan.TicksPerMillisecond).ToString("N0"));
    } //main
} //TimeSpanFieldsDemo

/*
This example of the fields of the TimeSpan class
generates the following output.

Field                              Value
-----                              -----
Maximum TimeSpan       10675199.02:48:05.4775807
Minimum TimeSpan      -10675199.02:48:05.4775808
Zero TimeSpan                   00:00:00

Ticks per day            864,000,000,000
Ticks per hour            36,000,000,000
Ticks per minute             600,000,000
Ticks per second              10,000,000
Ticks per millisecond             10,000
*/

Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professionnel Édition x64, Windows XP Starter Edition, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile pour Smartphone, Windows Mobile pour Pocket PC, Xbox 360

Le .NET Framework et le .NET Compact Framework ne prennent pas en charge toutes les versions de chaque plateforme. Pour obtenir la liste des versions prises en charge, consultez Configuration requise du .NET Framework.

.NET Framework

Pris en charge dans : 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Pris en charge dans : 3.5, 2.0, 1.0

XNA Framework

Pris en charge dans : 2.0, 1.0
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