public void LoadData() { try { QLHS_BUS bus = new QLHS_BUS(); DataTable dt = bus.LayTatCaLop(); DataTable dt_1 = bus.LayKhoiLop(); dtgv_themlop.DataSource = dt; cb_Khoi_LopHoc.DataSource = dt_1; cb_Khoi_LopHoc.DisplayMember = "MaKhoiLop"; cb_Khoi_LopHoc.ValueMember = "MaKhoiLop "; if (dt.Rows.Count > 0) { dtgv_themlop.Rows[0].Selected = true; RowSelected = new QLHS_DTO(); RowSelected.MaLop = dtgv_themlop.SelectedRows[0].Cells["MaLop"].Value.ToString(); RowSelected.TenLop = dtgv_themlop.SelectedRows[0].Cells["TenLop"].Value.ToString(); RowSelected.SiSo = dtgv_themlop.SelectedRows[0].Cells["SiSo"].Value.ToString(); RowSelected.MaKhoiLop = dtgv_themlop.SelectedRows[0].Cells["MaKhoiLop"].Value.ToString(); } } catch (Exception ex) { } }