If you use the default code, you are stuck with the default behavior.
But go on and implement the handlers yourself. It is really pretty
easy once you get the hang of it, and you have complete control over
what happens and when, and how it looks. I just did this a few days
ago.
There are good examples in the docs. Below is one of my handlers as
an example.
Tracy
private function onDragOverProjContacts(event:DragEvent):void {
if (event.dragSource.hasFormat("items")) {
event.preventDefault();
var dgDragInit:DataGrid = DataGrid(event.dragInitiator);
if (dgDragInit.id == "dgProjUsers") {
DragManager.showFeedback(DragManager.MOVE);
DragManager.acceptDragDrop(DataGrid
(event.currentTarget));
}
else if (dgDragInit.id == "dgSiteContacts") { //ADD from
site contacts
if (noDuplicate(event.dragSource)) {
DragManager.showFeedback(DragManager.COPY);
DragManager.acceptDragDrop(DataGrid(event.currentTarget));
}
else {
DragManager.showFeedback(DragManager.NONE);
}
}
}
}//onDragOverProjContacts
