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Dictionary(Of TKey, TValue).ContainsValue Method

Determines whether the Dictionary(Of TKey, TValue) contains a specific value.

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

'Declaration
Public Function ContainsValue ( _
	value As TValue _
) As Boolean

Parameters

value
Type: TValue

The value to locate in the Dictionary(Of TKey, TValue). The value can be Nothing for reference types.

Return Value

Type: System.Boolean
true if the Dictionary(Of TKey, TValue) contains an element with the specified value; otherwise, false.

This method determines equality using the default equality comparer EqualityComparer(Of T).Default for TValue, the type of values in the dictionary.

This method performs a linear search; therefore, the average execution time is proportional to Count. That is, this method is an O(n) operation, where n is Count.

.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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