ASP.NET MVC区域返回空白视图

Question

我有一个ASP.NET MVC应用程序，其中也包含一些区域。

对于短网址，我在RouteConfig的以下区域中设置了所有带有短网址的操作方法。

//admin dashboard having short url admin/dashboard
context.MapRoute(
            "admin_dashboard",
            "admin/dashboard",
            new { area = "admin", controller = "admin", action = "dashboard" }
        );

//student list having short url admin/studentlist
        context.MapRoute(
            "student_list",
            "admin/studentlist",
            new { area = "admin", controller = "students", action = "List" }
        );

//new student having short url admin/student/new
        context.MapRoute(
            "student_new",
            "admin/student/new",
            new { area = "admin", controller = "students", action = "RegisterStudent" }
        );

//edit student having short url admin/student/id
        context.MapRoute(
            "student_edit",
            "admin/student/{id}",
            new { area = "admin", controller = "students", action = "RegisterStudent" }
        );

如您所见，我已经为所有操作方法定义了简短的url，并且除了最后两个调用方法但返回空白视图的方法之外，它也可以正常工作。

        [Route("admin/student/{id}")]
        [Route("admin/student/new")]
        public ActionResult RegisterStudent(string Id)
        {
         ....mycode
         return View("RegisterStudent", mymodel);
        }

问题是它正在调用该方法而没有任何错误，但是它没有返回视图。它返回空白视图。为什么发生这种情况，我没有犯任何错误？

Answer 1

如果您的请求将转到您的操作方法，那么路由就没有问题。如果您的操作返回的是空白的View，那么View本身一定存在问题。

Answer 2

Id在route中默认为整数。您正在将其视为字符串。