private void CreateControllers(Type mainListType)
 {
     Controller         = new TestEditorController(mainListType, View, QueryHelper, Session);
     MainGridController = View.MainGridController =
         new TestMainGridController(MainGrid, Controller);
     MainGrid.SetController(MainGridController);
     if (Controller.IsParentGridToBeShown)
     {
         ParentGridController = new TestParentGridController(ParentGrid, Controller);
         ParentGrid.SetController(ParentGridController);
     }
 }