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