Defines a generalized method that a value type or class implements to create a type-specific method for determining equality of instances.
See Also: IEquatable<T> Members
Syntax
Type Parameters
- T
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Remarks
This interface is implemented by types whose values can be equated (for example, the numeric and string classes). A value type or class implements the IEquatable`1.Equals(`0) method to create a type-specific method suitable for determining equality of instances.
The IComparable`1 interface defines the IComparable`1.CompareTo(`0) method, which determines the sort order of instances of the implementing type. The IEquatable`1 interface defines the IEquatable`1.Equals(`0) method, which determines the equality of instances of the implementing type.
The IEquatable`1 interface is used by generic collection objects such as Dictionary`2, List`1, and LinkedList`1 when testing for equality in such methods as Contains, IndexOf, LastIndexOf, and Remove. It should be implemented for any object that might be stored in a generic collection.
Requirements
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 2.0.0.0, 4.0.0.0
Since: .NET 2.0