Occurs when the user starts dragging the selected Scheduler's appointment(s).
public event StartAppointmentDragEventHandler StartAppointmentDrag
Public Event StartAppointmentDrag As StartAppointmentDragEventHandler
The StartAppointmentDrag event's data class is DevExpress.Xpf.Scheduling.StartAppointmentDragEventArgs.
When the user initiates dragging from outside the Scheduler, the StartAppointmentDrag event does not fire. The StartAppointmentDragFromOutside event occurs instead.