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The OnClientAppointmentDeleting client-side event is called before an appointment is deleted.

Two parameters are passed to the event handler:

  • sender is the scheduler client object.

  • eventArgs has the following methods:

  • get_appointment() returns the appointment instance.

  • get_editingRecurringSeries() returns True if the user is tryingto delete a series to which the appointment belongs, False if the user is trying to delete a single occurrenceof an appointment.

  • set_cancel() lets you permit or block the deletion of the appointment.Calling set_cancel(true) aborts the deletion, while set_cancel(false) allows thescheduler to proceed with deleting the appointment.


This example stops the deletion if the user is about to delete an appointment's series:

<script type="text/javascript">   
function OnClientAppointmentDeleting(sender, eventArgs)
 DataSourceID = "AppointmentsDS" />

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