SortedList Desc Order

Question

I am using SortedList to arrange arraylist records dynamically in sort order by datecolumn, but by default it is sorting in ascending

Answer 1

Swapping y for x should do when comparing

class DescComparer : IComparer
{
    public int Compare(T x, T y)
    {
        if(x == null) return -1;
        if(y == null) return 1;
        return Comparer.Default.Compare(y, x);
    }
}

and then this

var list = new SortedList(new DescComparer());