Equals Method
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IEqualityComparer.Equals Method (Object, Object)


Determines whether the specified objects are equal.

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

abstract Equals : 
        x:Object *
        y:Object -> bool


Type: System.Object

The first object to compare.

Type: System.Object

The second object to compare.

Return Value

Type: System.Boolean

true if the specified objects are equal; otherwise, false.

Exception Condition

x and y are of different types and neither one can handle comparisons with the other.

Implement this method to provide a customized equality comparison for objects.

Notes to Implementers:

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.

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 following code example demonstrates the implementation of a case-insensitive IEqualityComparer. In this example, the CaseInsensitiveComparer.Compare method is used to determine whether two objects are equal, based on the provided CultureInfo.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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