MVC Preview 4-路由表中没有路由与提供的值匹配 [英] MVC Preview 4 - No route in the route table matches the supplied values

问题描述

我有一条通过RedirectToRoute调用的路由，如下所示:

I have a route that I am calling through a RedirectToRoute like this:

return this.RedirectToRoute("Super-SuperRoute", new { year = selectedYear });

我也尝试过:

 return this.RedirectToRoute("Super-SuperRoute", new { controller = "Super", action = "SuperRoute", id = "RouteTopic", year = selectedYear });

global.asax中的路由如下:

The route in the global.asax is like this:

routes.MapRoute(
    "Super-SuperRoute", // Route name
    "Super.mvc/SuperRoute/{year}",  // URL with parameters
     new { controller = "Super", action = "SuperRoute", id = "RouteTopic" }  // Parameter defaults
);

为什么我会收到错误消息:路由表中没有路由与提供的值匹配."

So why do I get the error: "No route in the route table matches the supplied values."?

我看到selectedYear的类型是var.当我尝试使用int.Parse转换为int时，我意识到selectedYear实际上为null，这可以解释问题.我想下一次我将在断点处更加关注变量的值:)

I saw that the type of selectedYear was var. When I tried to convert to int with int.Parse I realised that selectedYear was actually null, which would explain the problems. I guess next time I'll pay more attention to the values of the variables at a breakpoint :)

推荐答案

选择哪种类型年份?日期时间?如果是这样，那么您可能需要转换为字符串.

What type is selectedYear? A DateTime? If so then you might need to convert to a string.

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