Dictionary<'TKey, 'TValue>.ContainsValue Method ('TValue)


Determines whether the Dictionary<'TKey, 'TValue> contains a specific value.

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

member ContainsValue : 
        value:'TValue -> bool


Type: TValue

The value to locate in the Dictionary<'TKey, 'TValue>. The value can be null for reference types.

Return Value

Type: System.Boolean

true if the Dictionary<'TKey, 'TValue> contains an element with the specified value; otherwise, false.

This method determines equality using the default equality comparer EqualityComparer<'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.

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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