The best way to get a count of IEnumerable

Question

Whats the best/easiest way to obtain a count of items within an IEnumerable collection without enumerating over all of the items in the collection?

Possible with LIN

Answer 1

If you need to count and then loop you may be better off with a list.

If you're using count to check for members you can use Any() to avoid enumerating the entire collection.