// now synchronize the listBox in the parent zul-file
final ListModelList lml = (ListModelList) listBoxOrderOrderPositions.getListModel();
// Check if the orderPosition object is new or updated
// -1 means that the obj is not in the list, so it's
// new.
if (lml.indexOf(orderposition) == -1) {
} else {
lml.remove(lml.indexOf(orderposition));
}
// +++++++ now synchronize the listBox in the parent