IEqualityComparer.Equals Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Determines whether the specified objects are equal.
Namespace: System.Collections
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Function Equals ( _
x As Object, _
y As Object _
) As Boolean
bool Equals(
Object x,
Object y
)
Parameters
- x
Type: System.Object
The first object to compare.
- y
Type: System.Object
The second object to compare.
Return Value
Type: System.Boolean
true if the specified objects are equal; otherwise, false.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentException | x and y are of different types and neither one can handle comparisons with the other. |
Remarks
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.
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.