| Interface | Description | |
|---|---|---|
![]()  | IKeyedCollection<TKey,TItem> | An interface for a collection whose keys are embedded in the values. | 
![]()  | INonNullEnumerable<T> | Exposes the enumerator, which supports a simple iteration over a collection of non-null elements of a specified type. | 
![]()  | IObservableKeyedCollection<TKey,TItem> | An interface for am observable collection whose keys are embedded in the values. | 
            