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

Reference

Definition

Namespace:: System.Collections.Generic

Assembly:: System.Collections.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: Dictionary.cs

Source:: Dictionary.cs

Source:: Dictionary.cs

Important

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

public:
 bool ContainsValue(TValue value);

public bool ContainsValue (TValue value);

member this.ContainsValue : 'Value -> bool

Public Function ContainsValue (value As TValue) As Boolean

Parameters

value: TValue

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

Returns

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.

Applies to

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