Form form = new Form("form");
add(form);
List<CoverageStoreInfo> coverageStores = new ArrayList<CoverageStoreInfo>(getCatalog()
.getCoverageStores());
Collections.sort(coverageStores, new StoreNameComparator());
stores = new DropDownChoice<CoverageStoreInfo>(
"store", coverageStores, new StoreChoiceRenderer());
stores.setModel(new PropertyModel(this, "selectedStore"));
stores.setRequired(true);
form.add(stores);