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IEqualityComparer.GetHashCode Method

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.

ExceptionCondition
ArgumentNullException

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

Implement this method to provide customized hash codes for objects,corresponding to the customized equality comparison provided by the Equals method.

Notes to Implementers

Implementations are required to ensure that if the Equals method returns true for two objects x and y, then the value returned by the GetHashCode method for x must equal the value returned for y.

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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