Describes the action that caused a CollectionChanged event.
Assembly: System (in System.dll)
An item was added to the collection.
An item was moved within the collection.
An item was removed from the collection.
An item was replaced in the collection.
The content of the collection was cleared.
Available since 4.5
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1