I am using using Drag and Drop to reorder in a List Box, using the example from the ListBox documentation if I drag outside of the List box the dragged item is deleted from the list box. Any way I can stop this from happening???
1 Answer, 1 is accepted
answered on 04 May 2021, 12:09 PM
This is the default behavior of the base DragDropBehavior class inherited by the ListBoxDragDropBehavior. If the drag/drop action finishes while the mouse is outside of the RadListBox control (over another element that allows drop), the dragged items are removed from the source collection.
To alter this behavior, you can create a custom class deriving from ListBoxDragDropBehavior and override its DragDropCompleted method. There you can implement custom code that executes on drop outside of RadListBox. For example:
publicclassCustomListBoxDragDropBehavior : ListBoxDragDropBehavior
// do nothing, if you want to avoid removing the dragged items on drag outside of the listbox// else, execute custom logic that removes the items. You do this using the following line:// RemoveItems(state.SourceItemsSource, state.DraggedItems);
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