Dragging's a Drag

For reasons that are beyond my comprehension, Flex List components have a property to allow moving of list items, but not one for copying.

If you allow moving, then you SURELY must also want to allow a poor implementation of copying, whereby your object is deep copied rather than cloned via some interface, putting Objects into your dataProvider rather than whatever class you were using. Also, copying is enabled by holding the control key -- not obvious to me, at least.

package
{
import mx.events.DragEvent;
import mx.managers.DragManager;

import spark.components.List;

/** Disables copy-dragging on List */
public final class NonCopyableList extends List
{
 override protected function dragDropHandler(event:DragEvent):void {
  event.ctrlKey = false;
  event.action = DragManager.MOVE;
  super.dragDropHandler(event);
 }
 
 override protected function dragOverHandler(event:DragEvent):void {
  event.ctrlKey = false;
  super.dragOverHandler(event);
 }
}
}

You're welcome.