gtk-sharp 2.12.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Event sender. Event arguments. Event handler. The following events utilize this delegate: Event data is passed via the parameter. To attach a to an event, add the RowDeletedHandler instance to the event. The methods referenced by the RowDeletedHandler instance are invoked whenever the event is raised, until the RowDeletedHandler is removed from the event. System.Delegate System.Void