This enumeration defines how a collection has changed for the CollectionChangeEventArgs . This is used in data-binding applications to notify interested parties that a data source has been modified in some way (e.g., the System.Data.DataColumnCollection.CollectionChanged event). public enum CollectionChangeAction { Add = 1 , Remove = 2 , Refresh = 3 } HierarchySystem.Object System.ValueType System.Enum(System.IComparabl, System.IFormattable , System.IConvertible) CollectionChangeAction Returned ByCollectionChangeEventArgs.Action Passed ToCollectionChangeEventArgs.CollectionChangeEventArgs( ) |