DrageAndDrop then update object data

[Pratt]

I have an collection of Employee objects who have a collection of Assignment objects as a property.  The Assignment object has an Employee object property.

I have another collection of "Unassigned" Assignments.

UI-wise I want to drag and drop from the Unassigned RadListBox to the assignment RadListBox of an Employee.

I have the drag and drop down. What I am missing is updating the Assignment.Employee property after an Assignment is dropped into the Employee.Assignments collection.  I have looked at overriding the DragDropBehavior,  but I do not see a way of accessing the data object that contains the DestinationItemsSource.

Help?

[Kalin]

Hello Pratt,

You should be able to achieve the desired using a custom ListBoxDragDropBehavior. You will need to override the DragDropCompleted and can access the just dropped item through the DragDropState - in state.DraggedItems property and modify it as required. Give it a try let us know if it helped.

Hope this will work for you.

Regards,
Kalin
Telerik