ASP.NET MVC. How to clear values ​​cached using [OutputCacheAttribute]

Question

I am using [OutputCacheAttribute] to cache some actions. Everything is working fine. Let's say I set its Duration property to 1 hour. But I want to clear the cached values. Is it possible?

Answer 1

Looking at the source code of [OutputCacheAttribute], it seems that the only possible solution is to implement a new class obtained from MemoryCache and set its property OutputCacheAttribute.ChildActionCache. This class will use some custom prefix for all cached keys, so it will be pretty easy for me to find them (and then remove them from the cache).