ReadOnlyDictionary<TKey,TValue>.IDictionary.Contains(Object) Method
Definition
Determines whether the dictionary contains an element that has the specified key.
virtual bool System.Collections.IDictionary.Contains(System::Object ^ key) = System::Collections::IDictionary::Contains;bool IDictionary.Contains (object key);abstract member System.Collections.IDictionary.Contains : obj -> bool
override this.System.Collections.IDictionary.Contains : obj -> boolFunction Contains (key As Object) As Boolean Implements IDictionary.ContainsParameters
- key
- Object
The key to locate in the dictionary.
Returns
true if the dictionary contains an element that has the specified key; otherwise, false.
Implements
Exceptions
key is null.
Remarks
This member is an explicit interface member implementation. It can be used only when the ReadOnlyDictionary<TKey,TValue> instance is cast to an IDictionary interface.