This topic has not yet been rated - Rate this topic

IEqualityComparer<T>.Equals Method

.NET Framework 4.5

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.

Remarks

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.

Version Information

.NET Framework

Supported in: 4.5, 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

.NET for Windows Store apps

Supported in: Windows 8

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference

IEqualityComparer<T> Interface

System.Collections.Generic Namespace

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)