- o
- Event sender.
- args
- Event arguments.
The TreeView.RowCollapsed event utilizes this delegate:
Event data is passed via the Gtk.RowCollapsedArgs parameter.
To attach a Gtk.RowCollapsedHandler to an event, add the RowCollapsedHandler instance to the event. The methods referenced by the RowCollapsedHandler instance are invoked whenever the event is raised, until the RowCollapsedHandler is removed from the event.