List concurrent removing and adding

Question

I am not too sure, so i thought i\'d ask. Would removing and adding items to a System.Collections.Generic.List<> object be non-thread safe?

My sit

Answer 1

List is not thread-safe, so yes, you will need to control access to the list with a lock. If you have multiple threads accessing the List make sure you have them all respect the lock or you will have issues. The best way to do this would to be to subclass the List so that the locking happens automatically, else you will more than likely end up forgetting eventually.