C#: How to implement a smart cache

Question

I have some places where implementing some sort of cache might be useful. For example in cases of doing resource lookups based on custom strings, finding names of properties usi

Answer 1

You could wrap each of your cached items in a WeakReference. This would allow the GC to reclaim items if-and-when required, however it doesn't give you any granular control of when items will disappear from the cache, or allow you to implement explicit expiration policies etc.

(Ha! I just noticed that the example given on the MSDN page is a simple caching class.)