C# - Inserting And Removing From Cache?

May 20, 2010

1 - If I insert to Cache by assigning the value:

Cache["key"] = value;

what's the expiration time?2 - Removing the same value from Cache:

I want to check if the value is in Cache by if(Cache["key"]!=null), is it better to remove it from Cache by Cache.Remove("key") or Cache["key"]=null ?

-- Edit --After having tried Cache.Remove and Cache["key"]=null, DO NOT USE Cache["key"]=null, as it will throw exceptions when used in stress.

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