protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { LopHoc lh = new LopHoc(); if (Request.QueryString["action"] == "nhapdiem") { string action = Request.QueryString["nhapdiem"]; string malop = Request.QueryString["malop"]; Session["malop"] = malop; lh.MaLop = Session["malop"].ToString(); } lh.MaLop = Session["malop"].ToString(); GiaoVien gv = new GiaoVien(); int magv = int.Parse(Session["magv"].ToString()); monhoc = gvDAL.GetMaMonHoc(magv, lh.MaLop); gv.MaGV = magv; DSHocSinh.DataSource = gvDAL.GetDanhSachHSLopNhapDiem(Session["malop"].ToString(), magv, monhoc); DSHocSinh.DataBind(); kiemtratb(); } lbTenLop.Text = gvDAL.LayTenLop(Session["malop"].ToString()); lbMonHoc.Text = gvDAL.LayTenMonHoc(monhoc); }