CollectionChangedHandlerTItem, TCollectionInsertRange Method

public virtual void InsertRange(
	int index,
	IEnumerable<TItem> items
)

Public Overridable Sub InsertRange ( 
	index As Integer,
	items As IEnumerable(Of TItem)
)

abstract InsertRange : 
        index : int * 
        items : IEnumerable<'TItem> -> unit 
override InsertRange : 
        index : int * 
        items : IEnumerable<'TItem> -> unit 

This simply calls InsertItem(Int32, TItem) for each item in the list. If there is a faster mechanism for doing so, implementors should override this method. For example, sometimes inserting a single item will update the UI for each item, this should be overridden so the UI is updated after all items have been inserted.