public ThongTinHDDK(SIM ff, ThongtinSIM gg)
        {
            InitializeComponent();
            // This line of code is generated by Data Source Configuration Wizard
            // Instantiate a new DBContext
            //Model.EFModel.QLCuocDTContext dbContext = new Model.EFModel.QLCuocDTContext();
            //// Call the Load method to get the data for the given DbSet from the database.
            //dbContext.HoaDonDangKies.Load();
            //This line of code is generated by Data Source Configuration Wizard
            DangKySIMDAL dal = new DangKySIMDAL();
            var          res = dal.Load();

            hoaDonDangKiesBindingSource.DataSource = res;
            if (gg == null)
            {
                f = ff;
            }
            if (ff == null)
            {
                g = gg;
            }
            //txtmakh.Text = MaKH;
        }
        private void simpleButton7_Click(object sender, EventArgs e)
        {
            ThongtinSIM f = new ThongtinSIM(this);

            f.Show();
        }