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IHashCodeProvider.GetHashCode Method

Returns a hash code for the specified object.

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

int GetHashCode (
	Object obj
)
int GetHashCode (
	Object obj
)
function GetHashCode (
	obj : Object
) : int
Not applicable.

Parameters

obj

The Object for which a hash code is to be returned.

Return Value

A hash code for the specified object.

Exception typeCondition

ArgumentNullException

The type of obj is a reference type and obj is a null reference (Nothing in Visual Basic).

The return value from this method must not be persisted for two reasons. First, the hash function of a class might be altered to generate a better distribution, rendering any values from the old hash function useless. Second, the default implementation of this class does not guarantee that the same value will be returned by different instances.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0
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