ASP.NET MVC - Catch All Route And Default Route

Question

In trying to get my application to produce 404 errors correctly, I have implemented a catch all route at the end of my route table, as shown below:

 routes.M         


        

Answer 1

My Solution is 2 steps.

I originally solved this problem by adding this function to my Global.asax.cs file:

protected void Application_Error(Object sender, EventArgs e)

Where I tried casting Server.GetLastError() to a HttpException, and then checked GetHttpCode. This solution is detailed here:

ASP.NET MVC Custom Error Handling Application_Error Global.asax?

This isn't the original source where I got the code. However, this only catches 404 errors which have already been routed. In my case, that ment any 2 level URL.

for instance, these URLs would display the 404 page:

www.site.com/blah

www.site.com/blah/blah

however, www.site.com/blah/blah/blah would simply say page could not be found. Adding your catch all route AFTER all of my other routes solved this:

routes.MapRoute(
            "NotFound",
            "{*url}",
            new { controller = "Errors", action = "Http404" }
        );

However, the NotFound route does not seem to route requests which have file extensions. This does work when they are captured by different routes.