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

Definition

Namespace:
System.Collections.Generic
Assemblies:
System.Collections.dll, mscorlib.dll, netstandard.dll

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

See also