Kendo Combobox Issue

Hi Experts,
In My Project iam facing one problem with kendo Combo box actually my Application Requirement is Left Menu – Combobox Fields search has to Freeze on all inner frames but am facing problem with Cascade From when i kept  Cascade From in my code  Data
whatever Presented Left Menu Combo box Fields are didn't Bind so how to resolve this problem
Thanks & Regards
Kiran  

Hi. Here is a workaround.
//Modified  initialize method.  Added a null object to the list:
  @Override
    public void initialize(URL url, ResourceBundle rb) {
        MyObject a = new MyObject("a", "A");
        MyObject b = new MyObject("b", "B");
        MyObject c = new MyObject("c", "C");
        myList.add(a);
        myList.add(b);
        myList.add(c);
        myList.add(null);   
        cb.setItems(myList);
      Modified handleButtonAction(ActionEvent event) method:
private void handleButtonAction(ActionEvent event) {
         cb.getSelectionModel().selectLast();
         cb.getSelectionModel().clearSelection();
    }

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