Equals Method
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IEqualityComparer<T>.Equals Method

Determines whether the specified objects are equal.

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

bool Equals(
	T x,
	T y
)

Parameters

x
Type: T
The first object of type T to compare.
y
Type: T
The second object of type T to compare.

Return Value

Type: System.Boolean
true if the specified objects are equal; otherwise, false.

Implement this method to provide a customized equality comparison for type T.

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.

The Equals method is reflexive, symmetric, and transitive. That is, it returns true if used to compare an object with itself; true for two objects x and y if it is true for y and x; and true for two objects x and z if it is true for x and y and also true for y and z.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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