public class SortVM {
	public class Resource {
		private String code;
		private String description;
		public Resource(String code, String description) {
			this.code = code;
			this.description = description;
		}
		public String getCode() { return code; }
		public String getDescription() { return description; }
	}

	public Resource[] getResources() {
		return new Resource[] { new Resource("01", "ZZZ"), new Resource("02", "AAA") };
	}
}

<listbox viewModel="@id('vm') @init('SortVM')" model="@load(vm.resources)">
	<listhead>
		<listheader label="Code" sort="auto(code)" sortDirection="ascending" />
		<listheader label="Description" sort="auto(description)" />
	</listhead>
	<template name="model">
		<listitem>
			<listcell label="${each.code}" />
			<listcell label="${each.description}" />
		</listitem>
	</template>
</listbox>