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The AppointmentDelete event occurs just before the scheduler calls its data source to delete an appointment.

AppointmentDelete has two parameters:

  • sender is the scheduler control.

  • e is an object of type SchedulerCancelEventArgs. It has two properties:

  • Appointment is the appointment that is about to be deleted.

  • Cancel is a boolean value that lets you prevent the deletion.


protected void RadScheduler1_AppointmentDelete(object sender, SchedulerCancelEventArgs e)
    if (e.Appointment.Attributes["ReadOnly"] == "true")
        e.Cancel = true;

Protected Sub RadScheduler1_AppointmentDelete(ByVal sender As Object, _
   ByVal e As SchedulerCancelEventArgs) Handles RadScheduelr1.AppointmentDelete
    If e.Appointment.Attributes("ReadOnly") = "true" Then
        e.Cancel = True
    End If
End Sub

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