Compare 2 generic list

How to Compare 2 generic lists:

            List<int> list1 = new List<int> { 1, 2, 3, 5, 6 };

            List<int> list2= new List<int> { 1, 2, 3 };

Answer: if you are trying to see if 2 sets are equal, then the best approach is to check the except extension method on Enumerable class. And make sure that the result does not have any entries.

            var except = Enumerable.Except(list1, list2);

            if (except.Count() > 0)
                Console.Write("Not equal");
            else
                Console.Write("equal");;

Reference:

http://stackoverflow.com/questions/2270754/how-to-compare-two-generic-lists-in-c-sharp-3-0