Linq problem with inserting new rows that have references to existing records

Question

(I believe this is the same problem as this one, but there\'s no answer there, and I think I can express the problem better here...)

I have two Linq-to-SQL classes,

Answer 1

Something isn't right here. I'm assuming State -> Count is a one to many relationship. In which case, the correct way of doing this is:

State s = State.GetState("NY"); // here I do a load of a State class via the Linq DataContext
County c = new County();
c.Name = "Rockland";

s.Counties.Add(c);
db.SubmitChanges();

Since State is the parent table, you need to add the counties to the state's counties collection.