Check if two list have the same items

Question

I have two lists as below, how can I say that they have the same elements. The order is not important.

var list1 = new List {1,2,3};
var list2 = n         


        

Answer 1

Without using linq.

 private static bool AreListsEqual(List list1, List list2)
 {
        var areListsEqual = true;

        if (list1.Count != list2.Count)
            return false;

        for (var i = 0; i < list1.Count; i++)
        {
            if (list2[i] != list1[i])
            {
                areListsEqual = false;
            }
        }

        return areListsEqual;
 }