public ActionResult DanhGia(double MaSV, int?Diem_1_1, int?Diem_1_2, int?Diem_1_3, int?Diem_1_4, int?Diem_2_1, int?Diem_2_2, int?Diem_2_3, int?Diem_3_1, int?Diem_3_2, int?Diem_4_1, int?Diem_4_2, int?Diem_4_3, int?Diem_5_1, int?Diem_5_2, int?Diem_5_3, int?Diem_6_1)
        {
            int a     = int.Parse(Session["NamHoc"].ToString());
            int b     = int.Parse(Session["HocKy"].ToString());
            var diem2 = new DiemRenLuyenLopDao();

            diem2.Update(MaSV, a, b, Diem_1_1, Diem_1_2, Diem_1_3, Diem_1_4, Diem_2_1, Diem_2_2, Diem_2_3, Diem_3_1, Diem_3_2, Diem_4_1, Diem_4_2, Diem_4_3, Diem_5_1, Diem_5_2, Diem_5_3, Diem_6_1);

            var d    = new DiemRenLuyenLopDao();
            var SV   = new SinhVienDao().GetSV(MaSV);
            var diem = new DiemRenLuyenDao();

            ViewBag.DiemSV       = diem.GetByRL(MaSV, a, b);
            ViewBag.DiemSV_Lop   = d.GetByRL(MaSV, a, b);
            ViewBag.DiemTong     = diem.DiemTong(MaSV, a, b);
            ViewBag.DiemTong_Lop = d.DiemTong(MaSV, a, b);
            ModelState.AddModelError("", "Lưu Thành công.");
            var diemRL = new DiemRenLuyenLopDao();

            Session.Add("XS", diemRL.XS(20192020, 1));
            Session.Add("Tot", diemRL.Tot(20192020, 1));
            Session.Add("Kha", diemRL.Kha(20192020, 1));
            Session.Add("TB", diemRL.TB(20192020, 1));
            Session.Add("Yeu", diemRL.Yeu(20192020, 1));
            Session.Add("Kem", diemRL.Kem(20192020, 1));
            return(View(SV));
        }