GetHashCode Method
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IHashCodeProvider.GetHashCode Method (Object)

 

Returns a hash code for the specified object.

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

int GetHashCode(
	object obj
)

Parameters

obj
Type: System.Object

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

Return Value

Type: System.Int32

A hash code for the specified object.

Exception Condition
ArgumentNullException

The type of obj is a reference type and obj is null.

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.

.NET Framework
Available since 1.1
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