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Dictionary<TKey, TValue>.ContainsValue Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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

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

Syntax

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

public bool ContainsValue(
    TValue value
)

Parameters

  • value
    Type: TValue
    The value to locate in the Dictionary<TKey, TValue>. The value can be nulla null reference (Nothing in Visual Basic) for reference types.

Return Value

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

Remarks

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.

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.