asp.net webforms routing: optional parameters

Question

I want to add optional parameters in my routing table. For example I would like the users to browse a product catalog like this: http://www.domain.com/browse/by-category/el

Answer 1

try this:

routes.MapPageRoute(
           "ProductsBrowse",
            "browse/{BrowseBy}/{Category}/{*queryvalues}",
            "~/Pages/Products/Browse.aspx"
        );