ASP.NET Routing - Ignore routes for files with specific extension, regardless of directory

Question

Say I want to remove any mapped routes for files with a certain file extension.

 RouteTable.Routes.Ignore(\"{root}.hello\");

Works for any

Answer 1

If you're using ASP.NET MVC, use IgnoreRoutes (MVC Extension method)

Routes.IgnoreRoute("{*foo*}", new { foo = @"someregextoignorewhatyouwant"});

If you're using ASP.NET Web Forms, use StopRoutingHandler which implements IRouteHandler.

routes.Add(new Route("*someregextoignorewhatyouwant*", new StopRoutingHandler()));

Answer 2

Check out Phil's blog regarding this. Basically, you would do something like this:

Example 1: Do not perform routing for any request for all .aspx files:

routes.IgnoreRoute("{*allaspx}", new {allaspx=@".*\.aspx(/.*)?"});

Example 2: Do not perform routing for any request for favicon.ico

routes.IgnoreRoute("{*favicon}", new {favicon=@"(.*/)?favicon.ico(/.*)?"});