//ham set du lieu CSDL tu CSDL_OOP public void setDataGV(List <GV> list) { DTGV.Clear(); foreach (GV g in list) { DataRow dr = DTGV.NewRow(); dr["ID_GV"] = g.ID_GV; dr["Name"] = g.NameGV; dr["SDT"] = g.SDT; dr["NS"] = g.NS; dr["ID_CS"] = g.ID_CS; DTGV.Rows.Add(dr); } }