MQL5 ReferenceStandard LibraryGeneric Data CollectionsCHashMap<TKey,TValue>ContainsValue AddCountComparerContainsContainsKeyContainsValueCopyToClearRemoveTryGetValueTrySetValue ContainsValue Determines whether the hash table contains the key/value pair with the specified value. bool ContainsValue( TValue value // value ); Parameters value [in] Value. Return Value Returns true if the hash table contains a key/value pair with the specified value, or false otherwise. ContainsKey CopyTo