private void appendControls() {
remove(controls);
add("", controls);
Image trash = new Image(Images.UserTrashFull);
trash.setDroppable(toString());
trash.addEventListener(Events.ON_DROP, new EventListener() {
public void onEvent(Event evt) throws Exception {
DropEvent dropEvent = (DropEvent) evt;
getRows().removeChild(
dropEvent.getDragged().getParent().getParent());
}