System.Collections.IHashCodeProvider.GetHashCode Method

Returns a hash code for the specified object.

Syntax

public int GetHashCode (object obj)

Parameters

obj
The object for which a hash code is to be returned.

Returns

A hash code for the specified object.

Exceptions

TypeReason
ArgumentNullException obj is null.

Remarks

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.

Requirements

Namespace: System.Collections
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0