Sort one list by another

Question

I have 2 list objects, one is just a list of ints, the other is a list of objects but the objects has an ID property.

What i want to do is sort the list of objects b

Answer 1

One way of doing it:

List  order = ....;
List items = ....;

Dictionary d = items.ToDictionary(x => x.ID);

List ordered = order.Select(i => d[i]).ToList();