io.udash.bootstrap.dropdown.UdashDropdown.DropdownEvent
This event is fired when the dropdown has finished being hidden from the user (will wait for CSS transitions, to complete).
This event is fired immediately when the hide instance method has been called.
This event is fired on selection of any (except disabled ones) element from the dropdown.
This event fires immediately when the show instance method is called.
This event is fired when the dropdown has been made visible to the user (will wait for CSS transitions, to complete).