EF 7 Identity Insert Issue

Question

I have to be able to set the primary key of the entities I am trying to add in my list \"final_zones\". I have a controller constructor as follows:

    publi         


        

Answer 1

I solved it with the following:

       using (var dbContextTransaction = _context.Database.BeginTransaction())
        {
            try
            {
                _context.Database.ExecuteSqlCommand(@"SET IDENTITY_INSERT [CFETSWeb].[dbo].[Zone] ON");
                _context.Zones.AddRange(final_zones);
                _context.SaveChanges();          

                dbContextTransaction.Commit();
            }
            catch (Exception e)
            {
                dbContextTransaction.Rollback();
            }
        }

NOTE: You HAVE to do this per table. IDENTITY_INSERT can only be set for 1 table at a time it seems, so you can do it this way or toggle it to OFF in the same transaction.

Also, IDENTITY_INSERT has to be in a transaction, as it only stays on for the duration of a transaction.