private void UserControl_Loaded(object sender, RoutedEventArgs e) { if (objSlotDba == null) { objSlotDba = new SlotDba(); } if (objGeneralDba == null) { objGeneralDba = new GeneralDba(); } InitialUpdateAllSlots(); objSlotDba.triggerSlotUpdate += new EventHandler(Handle_triggerSlotUpdate); objGeneralDba.UnRegisterDBNotification(); objSlotDba.RegisterSlotDetailsWrtFloorNotification(Floor); InitializeCMSettings(); }