private void AddItems(MyItem newItem)
        {
            using ( MyDbContext context = new MyDbContext())
            {
                for (int i = 0; i < 10; i++)
                {
                    newItemList.IntProperty = i;
                    context.MyItems.AddObject(newItemList);
                }

                context.SaveChanges();
            }
        }

private void AddItems(MyItem newItemList)
        {
            using ( MyDbContext context = new MyDbContext())
            {
                for (int i = 0; i < 10; i++)
                {
                    newItem.IntProperty = i;
                    context.MyItems.AddObject(newItem);
                }

                context.SaveChanges();
            }
        }