SchedulerControl.DragAppointmentOver Event

Raised repeatedly while the user drags appointments within a Scheduler’s view.

Namespace: DevExpress.Xpf.Scheduling

Assembly: DevExpress.Xpf.Scheduling.v21.2.dll


public event DragAppointmentOverEventHandler DragAppointmentOver

Event Data

The DragAppointmentOver event's data class is DevExpress.Xpf.Scheduling.DragAppointmentOverEventArgs.


The example below illustrates how to assign a specific label to appointments that intersect another appointment.

private void Scheduler_DragAppointmentOver(object sender, DragAppointmentOverEventArgs e) {
    //if a dragged appointment intersects another appointment, paint it red to indicate a conflict
   for (int i = 0; i < e.ConflictedAppointments.Count; i++)
      if (e.ConflictedAppointments[i].Count > 0)
         e.DragAppointments[i].LabelId = 1;
      //roll the label back if no conflicts are detected
   for (int j = 0; j < e.ConflictedAppointments.Count; j++)
      if (e.ConflictedAppointments[j].Count == 0)
         e.DragAppointments[j].LabelId = e.SourceAppointments[j].LabelId;
See Also