If dragged component was selected, it doesn't sytle as selcted when it is dropped.(I use tab.getTabbox().setSelectedTab(tab), it doesn't work also.)

tab.addEventListener("onDrop", new EventListener()
{
@Override
public void onEvent(Event event)
throws Exception
{
if (event instanceof DropEvent)

{ DropEvent evt = (DropEvent) event; Component dragged = evt.getDragged(); Component target = evt.getTarget(); if (dragged instanceof Tab && target instanceof Tab) dragged.getParent().insertBefore(dragged, target); }

}
});