GetHashCode Method

TimeSpan.GetHashCode Method

Returns a hash code for this instance.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public override int GetHashCode()

Return Value

Type: System.Int32
A 32-bit signed integer hash code.

Two TimeSpan objects might have the same hash code even though they represent different time values.

The following code example generates the hash codes of several TimeSpan objects using the GetHashCode method.

// Example for the TimeSpan.GetHashCode( ) method. 
using System;

class GetHashCode
{
    static void DisplayHashCode( TimeSpan interval )
    {
        // Create a hash code and a string representation of  
        // the TimeSpan parameter.
        string  timeInterval = interval.ToString( );
        int     hashCode = interval.GetHashCode( );

        // 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( "{0,22}   0x{1:X8}, {1}", 
            timeInterval, hashCode );
    }

    static void Main( )
    {
        Console.WriteLine(
            "This example of TimeSpan.GetHashCode( ) generates " +
            "the following \noutput, which displays " +
            "the hash codes of representative TimeSpan \n" +
            "objects in hexadecimal and decimal formats.\n" );
        Console.WriteLine( "{0,22}   {1,10}", 
            "TimeSpan        ", "Hash Code" );
        Console.WriteLine( "{0,22}   {1,10}", 
            "--------        ", "---------" );

        DisplayHashCode( new TimeSpan( 0 ) );
        DisplayHashCode( new TimeSpan( 1 ) );
        DisplayHashCode( new TimeSpan( 0, 0, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 0, 1, 0 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 0 ) );
        DisplayHashCode( new TimeSpan( 36000000001 ) );
        DisplayHashCode( new TimeSpan( 0, 1, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 0, 0 ) );
        DisplayHashCode( new TimeSpan( 864000000001 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 100, 0, 0, 0 ) );
        DisplayHashCode( new TimeSpan( 100, 0, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 100, 0, 0, 1 ) );
    } 
} 

/*
This example of TimeSpan.GetHashCode( ) generates the following
output, which displays the hash codes of representative TimeSpan
objects in hexadecimal and decimal formats.

      TimeSpan            Hash Code
      --------            ---------
      00:00:00           0x00000000, 0
      00:00:00.0000001   0x00000001, 1
      00:00:00.0010000   0x00002710, 10000
      00:00:01           0x00989680, 10000000
      00:01:00           0x23C34600, 600000000
      01:00:00           0x61C46808, 1640261640
      01:00:00.0000001   0x61C46809, 1640261641
      01:00:00.0010000   0x61C48F18, 1640271640
      01:00:01           0x625CFE88, 1650261640
    1.00:00:00           0x2A69C0C9, 711573705
    1.00:00:00.0000001   0x2A69C0C8, 711573704
    1.00:00:00.0010000   0x2A69E7D9, 711583705
    1.00:00:01           0x2B025649, 721573449
  100.00:00:00           0x914F4E94, -1857073516
  100.00:00:00.0010000   0x914F6984, -1857066620
  100.00:00:01           0x91E7D814, -1847076844
*/

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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