public static void Seed(UpdatesContext context) { var productId1 = new Guid("984ade3c-2f7b-4651-a351-642e92ab7146"); var productId2 = new Guid("0edc9136-7eed-463b-9b97-bdb9648ab877"); context.Add(new Category { Id = 78, PrincipalId = 778 }); context.Add(new Product { Id = productId1, Name = "Apple Cider", Price = 1.49M }); context.Add(new Product { Id = productId2, Name = "Apple Cobler", Price = 2.49M }); context.SaveChanges(); }