什么都不传递和将null传递给View有什么区别？

Question

As I am a newbie in ASP.NET MVC, my question might be too basic. I have not explored the details yet but I urgently want to know the answer of the following question.

What is the difference between passing nothing and passing null to View?

Passing nothing:

    public ActionResult Create()
    {
        return View();
    }

Passing null:

    public ActionResult Create()
    {
        Movie m = null;
        return View(m);
    }

Answer 1

第一个将调用无参数的View() [方法/构造函数]，第二个将尝试找到一个定义为与您传递的对象最匹配的参数的[method / constructor] View(...) -完全失败，因为null没有这样的类型，因此无法完全匹配，因此，如果使用一个参数定义了多个View(...)方法，则将导致错误。

Answer 2

From the view's point-of-view there's no difference. In fact, first method is just an overload for second, passing null .