TimeSpan.CompareTo メソッド

指定したオブジェクトとこのインスタンスを比較し、これらの相対値を示す値を返します。

Public Overridable Function CompareTo( _
   ByVal value As Object _) As Integer
[C#]
public virtual int CompareTo(objectvalue);
[C++]
public: virtual int CompareTo(Object* value);
[JScript]
public function CompareTo(
   value : Object) : int;

パラメータ

• value
  比較対象のオブジェクト、または null 参照 (Visual Basic では Nothing) 。

戻り値

例外

解説

TimeSpan のすべてのインスタンスは、その値に関係なく、 null 参照 (Visual Basic では Nothing) より大きいと見なされます。

value パラメータが TimeSpan のインスタンスか null 参照 (Nothing) であることが必要です。それ以外の場合は例外がスローされます。

使用例

[Visual Basic, C#, C++] 次に示すのは、 CompareTo メソッドを使用して、 TimeSpan およびその他の複数のオブジェクトを TimeSpan の参照値と比較するコード例です。

 
' Example of the TimeSpan.CompareTo( Object ) and 
' TimeSpan.Equals( Object ) methods.
Imports System
Imports Microsoft.VisualBasic

Module TSCompToEqualsObjDemo
    
    ' Compare the TimeSpan to the Object parameters, 
    ' and display the Object parameters with the results.
    Sub CompTimeSpanToObject( Left as TimeSpan, Right as Object, _
        RightText as String )

        Console.WriteLine( "{0,-33}{1}", "Object: " & RightText, _
            Right )
        Console.WriteLine( "{0,-33}{1}", "Left.Equals( Object )", _
            Left.Equals( Right ) )
        Console.Write( "{0,-33}", "Left.CompareTo( Object )" )

        ' Catch the exception if CompareTo( ) throws one.
        Try
            Console.WriteLine( "{0}" & vbCrLf, _
                Left.CompareTo( Right ) )
        Catch ex As Exception
            Console.WriteLine( "Error: {0}" & vbCrLf, ex.Message )
        End Try
    End Sub

    Sub Main( )
        Dim Left as new TimeSpan( 0, 5, 0 )

        Console.WriteLine( _
            "This example of the TimeSpan.Equals( Object ) " & _
            "and " & vbCrLf & "TimeSpan.CompareTo( Object ) " & _
            "methods generates the " & vbCrLf & _
            "following output by creating several " & _
            "different TimeSpan " & vbCrLf & "objects and " & _
            "comparing them with a 5-minute TimeSpan." & vbCrLf )
        Console.WriteLine( "{0,-33}{1}" & vbCrLf, _
            "Left: TimeSpan( 0, 5, 0 )", Left )

        ' Create objects to compare with a 5-minute TimeSpan.
        CompTimeSpanToObject( Left, new TimeSpan( 0, 0, 300 ), _
            "TimeSpan( 0, 0, 300 )" )
        CompTimeSpanToObject( Left, new TimeSpan( 0, 5, 1 ), _
            "TimeSpan( 0, 5, 1 )" )
        CompTimeSpanToObject( Left, new TimeSpan( 0, 5, -1 ), _
            "TimeSpan( 0, 5, -1 )" )
        CompTimeSpanToObject( Left, new TimeSpan( 3000000000 ), _
            "TimeSpan( 3000000000 )" )
        CompTimeSpanToObject( Left, 3000000000L, "Long 3000000000L" )
        CompTimeSpanToObject( Left, "00:05:00", _
            "String ""00:05:00""" )
    End Sub
End Module 

' This example of the TimeSpan.Equals( Object ) and
' TimeSpan.CompareTo( Object ) methods generates the
' following output by creating several different TimeSpan
' objects and comparing them with a 5-minute TimeSpan.
' 
' Left: TimeSpan( 0, 5, 0 )        00:05:00
' 
' Object: TimeSpan( 0, 0, 300 )    00:05:00
' Left.Equals( Object )            True
' Left.CompareTo( Object )         0
' 
' Object: TimeSpan( 0, 5, 1 )      00:05:01
' Left.Equals( Object )            False
' Left.CompareTo( Object )         -1
' 
' Object: TimeSpan( 0, 5, -1 )     00:04:59
' Left.Equals( Object )            False
' Left.CompareTo( Object )         1
' 
' Object: TimeSpan( 3000000000 )   00:05:00
' Left.Equals( Object )            True
' Left.CompareTo( Object )         0
' 
' Object: Long 3000000000L         3000000000
' Left.Equals( Object )            False
' Left.CompareTo( Object )         Error: Object must be of type TimeSpan.
' 
' Object: String "00:05:00"        00:05:00
' Left.Equals( Object )            False
' Left.CompareTo( Object )         Error: Object must be of type TimeSpan.

[C#] 
// Example of the TimeSpan.CompareTo( Object ) and 
// TimeSpan.Equals( Object ) methods.
using System;

class TSCompToEqualsObjDemo
{
    // Compare the TimeSpan to the Object parameters, 
    // and display the Object parameters with the results.
    static void CompTimeSpanToObject( TimeSpan Left, object Right, 
        string RightText )
    {
        Console.WriteLine( "{0,-33}{1}", "Object: " + RightText, 
            Right );
        Console.WriteLine( "{0,-33}{1}", "Left.Equals( Object )", 
            Left.Equals( Right ) );
        Console.Write( "{0,-33}", "Left.CompareTo( Object )" );

        // Catch the exception if CompareTo( ) throws one.
        try
        {
            Console.WriteLine( "{0}\n", Left.CompareTo( Right ) );
        }
        catch( Exception ex )
        {
            Console.WriteLine( "Error: {0}\n", ex.Message );
        }
    }

    static void Main( )
    {
        TimeSpan Left = new TimeSpan( 0, 5, 0 );

        Console.WriteLine(
            "This example of the TimeSpan.Equals( Object ) " +
            "and \nTimeSpan.CompareTo( Object ) methods generates " +
            "the \nfollowing output by creating several different " +
            "TimeSpan \nobjects and comparing them with a " +
            "5-minute TimeSpan.\n" );
        Console.WriteLine( "{0,-33}{1}\n", 
            "Left: TimeSpan( 0, 5, 0 )", Left );

        // Create objects to compare with a 5-minute TimeSpan.
        CompTimeSpanToObject( Left, new TimeSpan( 0, 0, 300 ), 
            "TimeSpan( 0, 0, 300 )" );
        CompTimeSpanToObject( Left, new TimeSpan( 0, 5, 1 ), 
            "TimeSpan( 0, 5, 1 )" );
        CompTimeSpanToObject( Left, new TimeSpan( 0, 5, -1 ), 
            "TimeSpan( 0, 5, -1 )" );
        CompTimeSpanToObject( Left, new TimeSpan( 3000000000 ), 
            "TimeSpan( 3000000000 )" );
        CompTimeSpanToObject( Left, 3000000000L, 
            "long 3000000000L" );
        CompTimeSpanToObject( Left, "00:05:00", 
            "string \"00:05:00\"" );
    } 
} 

/*
This example of the TimeSpan.Equals( Object ) and
TimeSpan.CompareTo( Object ) methods generates the
following output by creating several different TimeSpan
objects and comparing them with a 5-minute TimeSpan.

Left: TimeSpan( 0, 5, 0 )        00:05:00

Object: TimeSpan( 0, 0, 300 )    00:05:00
Left.Equals( Object )            True
Left.CompareTo( Object )         0

Object: TimeSpan( 0, 5, 1 )      00:05:01
Left.Equals( Object )            False
Left.CompareTo( Object )         -1

Object: TimeSpan( 0, 5, -1 )     00:04:59
Left.Equals( Object )            False
Left.CompareTo( Object )         1

Object: TimeSpan( 3000000000 )   00:05:00
Left.Equals( Object )            True
Left.CompareTo( Object )         0

Object: long 3000000000L         3000000000
Left.Equals( Object )            False
Left.CompareTo( Object )         Error: Object must be of type TimeSpan.

Object: string "00:05:00"        00:05:00
Left.Equals( Object )            False
Left.CompareTo( Object )         Error: Object must be of type TimeSpan.
*/

[C++] 
// Example of the TimeSpan::CompareTo( Object* ) and 
// TimeSpan::Equals( Object* ) methods.
#using <mscorlib.dll>
using namespace System;

// Compare the TimeSpan to the Object parameters, 
// and display the Object parameters with the results.
void CompTimeSpanToObject( TimeSpan Left, Object* Right, 
    String* RightText )
{
    Console::WriteLine( S"{0,-33}{1}", 
        String::Concat( S"Object: ", RightText ), Right );
    Console::WriteLine( S"{0,-33}{1}", S"Left.Equals( Object )", 
        __box( Left.Equals( Right ) ) );
    Console::Write( S"{0,-33}", S"Left.CompareTo( Object )" );

    // Catch the exception if CompareTo( ) throws one.
    try
    {
        Console::WriteLine( S"{0}\n", 
            __box( Left.CompareTo( Right ) ) );
    }
    catch( Exception* ex )
    {
        Console::WriteLine( S"Error: {0}\n", ex->Message );
    }
}

void main( )
{
    TimeSpan Left = TimeSpan( 0, 5, 0 );

    Console::WriteLine(
        S"This example of the TimeSpan::Equals( Object* ) " 
        S"and \nTimeSpan::CompareTo( Object* ) methods generates " 
        S"the \nfollowing output by creating several different " 
        S"TimeSpan \nobjects and comparing them with a " 
        S"5-minute TimeSpan.\n" );
    Console::WriteLine( S"{0,-33}{1}\n", 
        S"Left: TimeSpan( 0, 5, 0 )", __box( Left ) );

    // Create objects to compare with a 5-minute TimeSpan.
    CompTimeSpanToObject( Left, __box( TimeSpan( 0, 0, 300 ) ), 
        S"TimeSpan( 0, 0, 300 )" );
    CompTimeSpanToObject( Left, __box( TimeSpan( 0, 5, 1 ) ), 
        S"TimeSpan( 0, 5, 1 )" );
    CompTimeSpanToObject( Left, __box( TimeSpan( 0, 5, -1 ) ), 
        S"TimeSpan( 0, 5, -1 )" );
    CompTimeSpanToObject( Left, __box( TimeSpan( 3000000000 ) ), 
        S"TimeSpan( 3000000000 )" );
    CompTimeSpanToObject( Left, __box( 3000000000L ), 
        S"__int64 3000000000L" );
    CompTimeSpanToObject( Left, S"00:05:00", S"String \"00:05:00\"" );
} 

/*
This example of the TimeSpan::Equals( Object* ) and
TimeSpan::CompareTo( Object* ) methods generates the
following output by creating several different TimeSpan
objects and comparing them with a 5-minute TimeSpan.

Left: TimeSpan( 0, 5, 0 )        00:05:00

Object: TimeSpan( 0, 0, 300 )    00:05:00
Left.Equals( Object )            True
Left.CompareTo( Object )         0

Object: TimeSpan( 0, 5, 1 )      00:05:01
Left.Equals( Object )            False
Left.CompareTo( Object )         -1

Object: TimeSpan( 0, 5, -1 )     00:04:59
Left.Equals( Object )            False
Left.CompareTo( Object )         1

Object: TimeSpan( 3000000000 )   00:05:00
Left.Equals( Object )            True
Left.CompareTo( Object )         0

Object: __int64 3000000000L      3000000000
Left.Equals( Object )            False
Left.CompareTo( Object )         Error: Object must be of type TimeSpan.

Object: String "00:05:00"        00:05:00
Left.Equals( Object )            False
Left.CompareTo( Object )         Error: Object must be of type TimeSpan.
*/

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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 | Object | Compare | Equals