private void LoadThongTinMonHoc(int MaMH) { DataTable data = MonHoc.LoadMHByMa(MaMH); if (data.Rows.Count > 0) { txtMaMon.ReadOnly = true; txtMaMon.Text = data.Rows[0]["iMaMon"].ToString(); txtTenKhoa.Text = data.Rows[0]["sTenSV"].ToString(); txtTinChi.Text = data.Rows[0]["sLop"].ToString(); } }