Exclude routing parameters in VaryByParam for Asp.Net 4

Question

I have a routing setting in my global.asax file:

routes.MapPageRoute("video-browse", "video/{id}/{title}/", "~/routeVideo.aspx");

My routeVideo.aspx page has caching setting:

<%@ OutputCache Duration="10" Location="ServerAndClient" VaryByParam="id" %>

But when I request http://localhost/video/6/example1 and http://localhost/video/6/example2 after this, the page is created again. So I think VaryByParam works for * but I only want compile when id changes. Is there a way to define routing parameters at VaryByParam?

I want this because title parameter is not important to me. It is there only for search engines and it is not used in my code.

Answer 1

VaryByParam treats parameter following the question mark '?', but you routing hides this into the path. That is why caching always "see" different urls. To fix it change

"video/{title}?id={id}

Answer 2

Try this:

routes.MapPageRoute("video-browse", "video/{id}/{title}/", 
                    "~/routeVideo.aspx?id={id}"); 

Answer 3

You may need to set validateIntegratedModeConfiguration to false in your web.config.

Eg. see...

http://stackoverflow.com/questions/2199190/outputcache-doesnt-work-with-routing/2200006#2200006