private static void Handle_Drop(object sender, DragEventArgs e)
{
_layer.Remove(_adorner);
_adorner = null;
if (Reordered != null)
Reordered(_listbox, new DropData
{
OriginalData = ((ListBoxItem)(sender)).DataContext,
DroppedData = e.Data
});
}
private static void StartDrag(FrameworkElement draggedItem)
{
ResetAdorner();
_adorner = new DragAdorner(draggedItem);
_layer = AdornerLayer.GetAdornerLayer(_listbox);
_layer.Add(_adorner);
//blocking call
DragDrop.DoDragDrop(draggedItem, draggedItem.DataContext, DragDropEffects.Move);
ResetAdorner();
}
private static void ResetAdorner()
{
if (_adorner != null)
{
_layer.Remove(_adorner);
_adorner = null;
}
}