ActionResult选择器和设计模式

我想ActionResult根据用户的选择创建类似的结构。

我的问题是，它是否可以以更通用的方式完成，或者至少以某种方式即兴完成？

我只是要确保它做得很好。

这是我的代码。

<p>A Partial Control that is initialized on Server-Side</p>
@{
    <h2>@ViewBag.InitializeUserControl</h2>
    Html.RenderAction("ShowGadget",new { actionName = (string)@ViewBag.InitializeUserControl } );      
}

 public class HomeController : Controller
    {
        public ActionResult Index()
        {
            @ViewBag.InitializeUserControl = "InitializeUserControl2"; // IT GOES FROM A DATABASE
            return View(new HomeModel());
        }

        public ActionResult ShowGadget(string actionName)
        {
            var gadgetPresenter = new GadgetPresenter();
            return gadgetPresenter.GetActionResult(actionName);
        }
    }


    public class GadgetPresenter : Controller
    {
        public ActionResult GetActionResult(string actionName)
        {
            if (string.IsNullOrEmpty(actionName))
            {
                return DefaultUserControl();
            }
            else
            {
                if (actionName.Equals("InitializeUserControl"))
                {
                    return InitializeUserControl();
                }
                else if (actionName.Equals("InitializeUserControl2"))
                {
                    return InitializeUserControl2();
                }
                else
                    return DefaultUserControl();
            }
        }

        public ActionResult InitializeUserControl2()
        {
            ColorModel colorModel = new ColorModel
            {
                Width = 100,
                Height = 100,
                RGBColor = "#FF0000"
            };

            return PartialView("UserControls/ColorBlockUserControl2", colorModel);
        }

        public ActionResult InitializeUserControl()
        {
            ColorModel colorModel = new ColorModel
            {
                Width = 200,
                Height = 200,
                RGBColor = "#FF0000"
            };

            return PartialView("UserControls/ColorBlockUserControl", colorModel);
        }

        public ActionResult DefaultUserControl()
        {
            return PartialView("UserControls/DummyControl");
        }

    }