Swap two items in List

Question

Is there a LINQ way to swap the position of two items inside a list?

Answer 1

Check the answer from Marc from C#: Good/best implementation of Swap method.

public static void Swap(IList list, int indexA, int indexB)
{
    T tmp = list[indexA];
    list[indexA] = list[indexB];
    list[indexB] = tmp;
}

which can be linq-i-fied like

public static IList Swap(this IList list, int indexA, int indexB)
{
    T tmp = list[indexA];
    list[indexA] = list[indexB];
    list[indexB] = tmp;
    return list;
}

---

var lst = new List() { 8, 3, 2, 4 };
lst = lst.Swap(1, 2);