<zk>
   <label multiline="true">
      1. click button to update empty search message.
      2. type 'a', should see 'No suggestions'.
   </label>

   <combobox id="combo" autodrop="true" emptySearchMessage="empty..."/>
   <button label="update emptySearchMessage" onClick='combo.setEmptySearchMessage("No suggestions");'/>
   <zscript>
      String[] items = {
        "item 1", "item 2"
      };
      ListModel dictModel = new SimpleListModel(items);
      combo.setModel(dictModel);
   </zscript>
</zk>