public AddressbookTree() { super(); SectionStackSection section = new SectionStackSection(); section.setCanCollapse(false); section.setExpanded(true); section.setResizeable(true); TreeGrid tree = new TreeGrid(); tree.setWidth100(); tree.setHeight100(); tree.setAnimateFolderTime(100); tree.setAnimateFolders(true); tree.setAnimateFolderSpeed(1000); tree.setShowSortArrow(SortArrow.CORNER); tree.setShowAllRecords(true); tree.setLoadDataOnDemand(false); tree.setCanSort(false); tree.setCellHeight(17); tree.setShowHeader(false); TreeGridField field = new TreeGridField(); field.setCanFilter(true); field.setName("name"); field.setTitle("<b>SmartGWT Showcase</b>"); tree.setFields(field); Tree treeData = new Tree(); treeData.setModelType(TreeModelType.PARENT); treeData.setNameProperty("name"); treeData.setOpenProperty("isOpen"); treeData.setIdField("nodeID"); treeData.setParentIdField("parentNodeID"); treeData.setRootValue("root"); treeData.setData(DemoData.getAddressBookTreeData()); tree.setData(treeData); section.setItems(tree); setSections(section); }