<zk>
    <zscript><![CDATA[
    ListModelList model = new ListModelList();
    void create(Component comp) {
        Events.echoEvent("onLoad", comp, null);
    }
    void load(Component comp) {
        org.zkoss.lang.Threads.sleep(1000);
        for (int i = 0; i < 1000; i++) {
            model.add("item " + i);
        }
    }
    ]]></zscript>
    <tabbox maximalHeight="true">
        <tabs>
            <tab id="tab1" label="1" />
            <tab id="tab2" label="2" />
        </tabs>
        <tabpanels>
            <tabpanel>
                Details 1
                <separator />
                Details 1
                <separator />
                Details 1
                <separator />
                Details 1
                <separator />
                Details 1
                <separator />
            </tabpanel>
            <tabpanel onCreate="create(self)" onLoad="load(self)">
                <grid id="details2" vflex="1" model="${model}">
                    <custom-attributes org.zkoss.zul.grid.rod="false" />
                </grid>
            </tabpanel>
        </tabpanels>
    </tabbox>
</zk>