<zk>
	<label multiline="true">
	1. Click on tree column to sort.
	2. It is bug if not see sort icon on tree column.
	</label>
	<tree id="tree" rows="5">
		<treecols sizable="true">
			<treecol label="Name" sort="auto" />
			<treecol label="Description" sort="auto" />
		</treecols>
		<treechildren>
			<treeitem>
				<treerow>
					<treecell label="Item 1" />
					<treecell label="Item 1 description" />
				</treerow>
			</treeitem>
			<treeitem>
				<treerow>
					<treecell label="Item 2" />
					<treecell label="Item 2 description" />
				</treerow>
				<treechildren>
					<treeitem>
						<treerow>
							<treecell label="Item 2.1" />
						</treerow>
					</treeitem>
					<treeitem>
						<treerow>
							<treecell label="Item 2.2" />
							<treecell
								label="Item 2.2 is something who cares" />
						</treerow>
					</treeitem>
				</treechildren>
			</treeitem>
			<treeitem label="Item 3" />
		</treechildren>
		<treefoot>
			<treefooter label="Count" />
			<treefooter label="Summary" />
		</treefoot>
	</tree>
</zk>