使用URL路由处理ASP.NET Web窗体中的404错误

Question

I'm looking at implementing URL Routing on an ASP.NET Web Forms website and have been looking at the best way to handle 404 errors so for example:

routes.MapPageRoute("NewsRouteArticle", "news/article/{url}", "~/news.aspx")

The URL is matched against a news article in the database.

What happens if a news article no longer exists? How can a handle this and redirect the user to the Custom Error page?

I have been reading about Throw New HttpResponseException(HttpStatusCode.NotFound) but it looks like it is for ASP.NET Web API.

I'm also aware of the issue that exists with ASP.NET where 404 Errors actually gives a status code of 302 and I want to try and avoid the issue (see this ).

Answer 1

One good reason to use ASP.NET.MVC, I have not done anything in webforms for so long, but I used

Server.TransferRequest("/my404page.aspx")

This stopped the 2 requests and the 302 to 404 problem

then returned a 404

   Response.Clear()
    Response.TrySkipIisCustomErrors = True
    Response.StatusCode = 404

Hope that helps