public event ThumbnailEx.ItemSelectionChangedEventHandler ItemSelectionChanged
public event ItemSelectionChanged: ThumbnailEx.ItemSelectionChangedEventHandler;
In JScript, you can handle the events defined by another class, but you cannot define your own.
public: __event ThumbnailEx.ItemSelectionChangedEventHandler* ItemSelectionChanged
public: event ThumbnailEx.ItemSelectionChangedEventHandler^ ItemSelectionChanged
'DeclarationPublic Event ItemSelectionChanged As ThumbnailEx.ItemSelectionChangedEventHandler