Prevent multiple appointments from being resized

[Håkan]

Hi,

I want to prevent the user from selecting multiple appointments and drag or resize them, only one at a time is allowed.
I have created a custom DragDropBehavior and overloaded the CanStartDrag and CanStartResize methods.
In CanStartDrag I do this check:

if (state.DraggedAppointments.Count() > 1)
  return false;

But if I do the same check in CanStartResize, the count is 0.
It seems that resized appointments are not in the DraggedAppointments collection.
Is there any other way I can check this?

Regards,
Håkan

[Valeri Hristov]

Hello Hakan,

RadScheduleView will resize ony the appointment that is being resized, even if you select multiple appointments. Unfortunately we do not provide API to change this behavior even though it is good. The resized appointment instance can be accessed through the DragDropState.Appointment property, but the rest of the selected appointments cannot be accessed for a resize operation.

I created a sample application that demonstrates two different approaches:
1) Completely disable the multiple selection in the ScheduleView - check the CustomAppointmentSelectionBehavior class. If you apply this, the user will not be able to select multiple appointments.
2) Drag only a single appointment, while unselecting the rest - check the CustomDragDropBehavior. If you apply this the user will be able to select multiple appointments, but if it starts a drag-drop operation, only the appointment that is under the mouse will remain selected and dragged. The resize operation will be as it is now.

Kind regards,
Valeri Hristov
the Telerik team

[Myles]

"RadScheduleView will resize ony the appointment that is being resized, even if you select multiple appointments" - Are there any plans to introduce this functionality in the future?  The lack of this functionality is preventing me from purchasing this product.

[Konstantina]

Hi Myles,

I have added this feature request in PITS. You can view it here. You can vote for it and track its status to see when it is going to be implemented. Once we start working on it, the status will be updated. The more vote it receives, the earlier will be implemented.

Regards,
Konstantina
the Telerik team