ConcurrentBag has a constructor that takes an IEnumerable.
IEnumerable<T> myEnum = ...
ConcurrentBag<T> myBag = new ConcurrentBag<T>(myEnum);
ConcurrentBag has a constructor that takes an IEnumerable.
IEnumerable<T> myEnum = ...
ConcurrentBag<T> myBag = new ConcurrentBag<T>(myEnum);