Question

Is there any rule to give proper name for the cache key we use in ASP.Net.

 string cacheKey = "aaaabbbbbsssssssss";
 ObjectCache cache = MemoryCache.Default;
 CacheItemPolicy cacheItemPolicy = new CacheItemPolicy();
 cacheItemPolicy.AbsoluteExpiration = DateTime.Now.AddDays(15);
 cache.Add(cacheKey, definitions, cacheItemPolicy);

Here the cacheKey = needs to be any string..I am concerned about the value of “cacheKey”

Answer 1

If you’re talking about HttpContext.Current.Cache, then no. Generally speaking, it’s your application that uses this cache, so you have full control over what you call the keys.

That said: if you’re concerned about collisions (e.g. between other assemblies that you’re using), consider using a namespace-qualified name — the typename of the class that owns the cache value might work. Alternatively, you might use a URI — they’re good for relatively unique names, since people are unlikely to use your domain name without meaning to. Of course, there’s always GUIDs.