private void ListPhieuThanhToan(int IDKhachHang) { var KhachHang = DBDataProvider.DB.khKhachHangs.Where(x => x.IDKhachHang == IDKhachHang).FirstOrDefault(); memoNoiDungTT.Text = ""; memoNoiDungTT.Text = KhachHang.HoTen.ToUpper() + " THANH TOÁN: "; var ListDonHang = DBDataProvider.ListPhieuGiaoHang(IDKhachHang); ccbPhieuThanhToan.DataSource = ListDonHang; ccbPhieuThanhToan.DataBind(); }