TimeSpan.Zero Campo

Referência

Definição

Namespace:: System

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Origem:: TimeSpan.cs

Origem:: TimeSpan.cs

Origem:: TimeSpan.cs

Importante

Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.

Representa o valor de TimeSpan zero. Este campo é somente leitura.

public: static initonly TimeSpan Zero;

public static readonly TimeSpan Zero;

 staticval mutable Zero : TimeSpan

Public Shared ReadOnly Zero As TimeSpan

Valor do campo

TimeSpan

Exemplos

O exemplo a seguir faz referência e exibe o valor do Zero campo .

// 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
*/

// 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
*/

// Example of the TimeSpan fields.
open System

// Pad the end of a TimeSpan string with spaces if it does not 
// contain milliseconds.
let align (interval: TimeSpan) =
    let intervalStr = string interval
    let pointIndex = intervalStr.IndexOf ':'

    let pointIndex = intervalStr.IndexOf('.', pointIndex)
    if pointIndex < 0 then intervalStr + "        "
    else intervalStr


printfn "This example of the fields of the TimeSpan class\ngenerates the following output.\n"
printfn "%-22s%18s" "Field" "Value"
printfn "%-22s%18s" "-----" "-----"

// Display the maximum, minimum, and zero TimeSpan values.
printfn $"""{"Maximum TimeSpan",-22}{align TimeSpan.MaxValue,26}"""
printfn $"""{"Minimum TimeSpan",-22}{align TimeSpan.MinValue,26}"""
printfn $"""{"Zero TimeSpan",-22}{align TimeSpan.Zero,26}
"""

// Display the ticks-per-time-unit fields.
printfn $"""{"Ticks per day",-22}{TimeSpan.TicksPerDay,18:N0}"""
printfn $"""{"Ticks per hour",-22}{TimeSpan.TicksPerHour,18:N0}""" 
printfn $"""{"Ticks per minute",-22}{TimeSpan.TicksPerMinute,18:N0}""" 
printfn $"""{"Ticks per second",-22}{TimeSpan.TicksPerSecond,18:N0}""" 
printfn $"""{"Ticks per millisecond",-22}{TimeSpan.TicksPerMillisecond,18:N0}""" 

(*
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
*)

' Example of the TimeSpan fields.
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

Comentários

Como o valor do Zero campo é um TimeSpan objeto que representa um valor de tempo zero, você pode compará-lo com outros TimeSpan objetos para determinar se este último representa intervalos de tempo positivos, não zero ou negativos. Você também pode usar esse campo para inicializar um TimeSpan objeto para um valor de tempo zero.

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