The property 'Id' is part of the object's key information and cannot be modified

Question

i\'m using Entity Framework 4.0 and having a silly problem that i can\'t figure out.

I have two tables:

1. Contact: Id (primary key), Value, ContactTypeId

Answer 1

In my case, I want to duplicate the object, but change the id, so I use this

Common.DataContext.Detach(object);

Work like a charm