<zk>
    <zscript><![CDATA[
        ListModel model = new ListModelList();
        model.add("adam");
        model.add("bbb");
        model.add("item0");
        model.add("item1");
        model.add("item2");
        model.add("item3");
        model.add("item4");
        model.add("item5");
        model.multiple = true;
        model.addToSelection("item1");
        model.addToSelection("item3");

        long id = 2;

        void update(Timer comp) {
            model.removeRange((int) id, (int) id + 2);
            if (model.size() == 2) {
                comp.stop();
            }
            return;
        }

    ]]></zscript>
    <div apply="org.zkoss.bind.BindComposer">
        <vlayout>
            <chosenbox model="@bind(model)" width="80%" creatable="true"/>
            <timer id="timer" repeats="true" delay="3000" onTimer="update(self)"/>
        </vlayout>
    </div>
</zk>