LinkedHashMap<String, String> snmpV1Map = new LinkedHashMap<String, String>();
    snmpV1Map.put("hello", "hello");
    snmpV1Map.put("createNew", "createNew");
    snmpV1Map.put("editDelete", "editDelete");

    final SelectItem selectItem = new SelectItem();
    selectItem.setTitle("Please Select");
    selectItem.setValueMap(snmpV1Map);
    selectItem.addFocusHandler(new FocusHandler() {

      @Override
      public void onFocus(FocusEvent event) {
        selectItem.showPicker();

      }
    });
    
    selectItem.addEditorEnterHandler(new EditorEnterHandler() {
      
      @Override
      public void onEditorEnter(EditorEnterEvent event) {
        selectItem.showPicker();
        
      }
    });


    DynamicForm selectItemForm = new DynamicForm();
    selectItemForm.setItems(selectItem);
    
    //HLayout t = new HLayout();
   // t.addMember(r);
    RootPanel.get().add(selectItemForm);