Arguments for the
The data item of the event.
The new end date of the event.
The original Scheduler event.
A reference to the Scheduler instance that triggered the event.
The new start date of the event.
true if the event was prevented
by any of its subscribers.
true if the default action was prevented.
Prevents the default action for a specified event.
In this way, the source component suppresses
the built-in behavior that follows the event.