IEqualityComparer Interface
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Defines methods to support the comparison of objects for equality.
Namespace: System.Collections
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
<ComVisibleAttribute(True)> _
Public Interface IEqualityComparer
[ComVisibleAttribute(true)]
public interface IEqualityComparer
The IEqualityComparer type exposes the following members.
Methods
| Name | Description | |
|---|---|---|
.gif "Public method") .gif "Supported by Silverlight for Windows Phone") .gif "Supported by Xbox 360") |
Equals | Determines whether the specified objects are equal. |
|
GetHashCode | Returns a hash code for the specified object. |
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Remarks
This interface allows the implementation of customized equality comparison for collections. That is, you can create your own definition of equality, and specify that this definition be used with a collection type that accepts the IEqualityComparer interface.
This interface supports only equality comparisons. Customization of comparisons for sorting and ordering is provided by the IComparer interface.
For the generic version of this interface, see System.Collections.Generic.IEqualityComparer<T>.
Version Information
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
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.