public static void SetSortOrderByListPosition(List <int> categoryIdsInSortOrder)
{
CategoryQuery q = new CategoryQuery();
q.Where(q.Id.In(categoryIdsInSortOrder.ToArray()));
CategoryCollection collection = new CategoryCollection();
if (collection.Load(q))
{
for (short i = 0; i < categoryIdsInSortOrder.Count; i++)
{
Category c = collection.FindByPrimaryKey(categoryIdsInSortOrder[i]);
if (c != null)
{
c.SortOrder = i;
}
}
collection.Save();
}
}