Updating object in Entity Framework 4 - A relationship from the AssociationSet is in the 'Added' state
using (tamcEntities myObjectContext = new tamcEntities())
        {

            // Attach all related objects to context
            List<FIPS> fipsList = new List<FIPS>();
            foreach (FIPS fips in myUser.FIPS)
            {
                FIPS myFIPS = new FIPS { FIPS_Code = fips.FIPS_Code };
                myObjectContext.FIPSCodes.Attach(myFIPS);
                fipsList.Add(myFIPS);
            }

            List<Region> regionsList = new List<Region>();
            foreach (Region region in myUser.Regions)
            {
                Region myRegion = new Region { RegionID = region.RegionID };
                myObjectContext.Regions.Attach(myRegion);
                regionsList.Add(myRegion);
            }

            Role myRole = new Role { ID = myUser.Role.ID };
            myObjectContext.Roles.Attach(myRole);

            // Remove existing relationship in user entity
            //myUser.Role = null;
            myUser.FIPS.Clear();
            myUser.Regions.Clear();

            // Assign related objects to user entity
            foreach (FIPS fipsCode in fipsList)
            {
                myUser.FIPS.Add(fipsCode);

            }

            foreach (Region region in regionsList)
            {
                myUser.Regions.Add(region);

            }

            myUser.Role = myRole;


            if (myUser.ID == 0)
            {
                myObjectContext.Users.AddObject(myUser);
            }
            else
            {
                myObjectContext.ObjectStateManager.ChangeObjectState(myUser, System.Data.EntityState.Modified);
            }

            result = (myObjectContext.SaveChanges(SaveOptions.None) != 0);
        }