final FilterColumn fc = af.getFilterColumn(fieldIndex - 1);
final TreeSet<RowInfo> rowInfos = new TreeSet<RowInfo>(new MyComparator());
final Set<RowInfo> selected = new HashSet<RowInfo>();
fetchRowInfos(fc, range, rowInfos, selected);
_filterListbox.setModel(new ListModelList(rowInfos));
//handle selection
ListModelList model = (ListModelList) _filterListbox.getListModel();
for(RowInfo rowInfo : selected) {
model.addSelection(rowInfo);
}
_filterListbox.setItemRenderer(new ListitemRenderer() {
public void render(Listitem item, Object data) throws Exception {
RowInfo info = (RowInfo)data;