在ASP.NET MVC框架中重写ViewDataDictionary

而不是:

public ActionResult Index()
{
    ViewData["foo"] = _repository.GetFoos().ToList();
    ViewData["bar"] = new string[] { "blah" };
    ViewData["baz"] = "";
    return View();
}

然后:

public ActionResult Index(string baz)
{
    // Do stuff...

    ViewData["foo"] = _repository.GetFoos().ToList();
    ViewData["bar"] = new string[] { "blah" };
    ViewData["baz"] = baz;
    return View();
}

我在考虑如何减少打字错误,使viewdata更结构化一点,而不必添加另一个viewModel类。我想到了以下几点:

public ActionResult Index()
{
    var foo = _repository.GetFoos().ToList();
    var bar = new string[] { "blah" };
    var baz = null;

    ViewData = new ViewDataDictionary {
        {"foo", foo},
        {"bar", bar},
        {"baz", baz }
    };

    return View();
}

public ActionResult Index(string baz)
{
    var foo = _repository.GetFoos().ToList();
    var bar = new string[] { "blah" };
    var baz = null;

    // Do Stuff...

    ViewData = new ViewDataDictionary {
        {"foo", foo},
        {"bar", bar},
        {"baz", baz}
    };

    return View();
}

这样覆盖视图数据是个坏主意吗?我很确定这不会导致渲染部分出现问题,但我是否不再能够在视图中调用渲染?