Initializes a new instance of the System.Collections.Specialized.NotifyCollectionChangedEventArgs class that describes a multi-item change or a System.Collections.Specialized.NotifyCollectionChangedAction.Reset change. Exceptions: System.ArgumentException: If action is not Reset, Add, or Remove, if action is Reset and either changedItems is not null or startingIndex is not -1, or if action is Add or Remove and startingIndex is less than -1. System.ArgumentNullException: If action is Add or Remove and changedItems is null.

public NotifyCollectionChangedEventArgs(
	NotifyCollectionChangedAction action,
	IList changedItems,
	int startingIndex
)