| Class | Description | |
|---|---|---|
 | ItemChangedEventArgs<TItem> | Provides data for the ItemChanged event. |
| ObservableDictionary<TKey,TValue> | Represents a generic collection of key/value pairs that provides notifications when items get added, removed, changed or when the whole list is refreshed. |
| ObservableKeyValuePair<TKey,TValue> | Defines a key/value pair that can be set or retrieved. |