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Dictionary(TKey, TValue).Comparer Property

Gets the IEqualityComparer(T) that is used to determine equality of keys for the dictionary.

Namespace:  System.Collections.Generic
Assemblies:   mscorlib (in mscorlib.dll)
  System.Collections (in System.Collections.dll)

member Comparer : IEqualityComparer<'TKey> with get

Property Value

Type: System.Collections.Generic.IEqualityComparer(TKey)
The IEqualityComparer(T) generic interface implementation that is used to determine equality of keys for the current Dictionary(TKey, TValue) and to provide hash values for the keys.

Dictionary(TKey, TValue) requires an equality implementation to determine whether keys are equal. You can specify an implementation of the IEqualityComparer(T) generic interface by using a constructor that accepts a comparer parameter; if you do not specify one, the default generic equality comparer EqualityComparer(T).Default is used.

Getting the value of this property is an O(1) operation.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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