Is it possible to route only specific static files in MVC?

Question

There is an answer to similar question.

But I don't want to route ALL existing files (RouteExistingFiles = true) and then ignore all of the types I do not need.

Can I be more precise with MVC or IIS settings telling it my intentions?

Answer 1

Finally, I made it the following way:

In RouteConfig.cs:

public static void RegisterRoutes(RouteCollection routes)
{
    routes.RouteExistingFiles = true;

    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

    routes.IgnoreRoute("{*route}", new { route = new AnyExistingFileExceptRazorView() });

    ...
}

Where AnyExistingFileExceptRazorView is a custom route constraint:

public class AnyExistingFileExceptRazorView : IRouteConstraint
{

    public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values,
        RouteDirection routeDirection)
    {
        string filePath = httpContext.Server.MapPath(httpContext.Request.Url.AbsolutePath)
                                     .ToLower();

        return File.Exists(filePath) 
               && !( filePath.EndsWith(".cshtml") || filePath.EndsWith(".vbhtml"));
    }
}

ToLower() is called because I'm not sure which case URL has, and I check the endings expecting the lower case.
It's also possible to compare Path.GetExtension(fielPath) == ".cshtml";