on_drop_down()

virtual void xtd::forms::combo_box::on_drop_down ( const event_args &  e )

protectedvirtual

Raises the xtd::forms::combo_box::drop_down event.

Remarks

This event is raised each time the drop-down is displayed.

Raising an event invokes the event handler through a delegate. For more information about handling events, see Handling and Raising Events.

The xtd::forms::combo_box::on_drop_down method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.