Question

For a web-site, I want to cache the pages ONLY for users who are not authenticated – authenticated users do not get cached content (since they will be updating and need to see results right away).

I know how to vary the cache for each user using VaryByCustom:
Link1
Link2

…But I can’t figure out how to turn off caching entirely for authenticated users.

What to do?

Edit

The code below has a problem if there is already a cached version of the page from an unauthenticated user. Basically the authenticated user will be served the unauthenticated view of things.

However, this link here has solution that works: Link

Answer 1

Use HttpCachePolicy.AddValidationCallback.

See: http://msdn.microsoft.com/en-us/library/system.web.httpcachepolicy.addvalidationcallback.aspx