The directors are sortable by dragging and dropping them.
After sorting, the Order value will be updated. However, to see this, you have to refresh the page.
The list is implemented with a SortableListView. Click here to see a SortableGridView in action.
Click on a director to see One-to-many sorting.
Note: You may get unpredictable results with this demo if someone else on the web is manipulating the data simultaneously.