public void UpdateHDN(EC_CTHD et) { string sql = "SuaHDN"; SqlConnection con = new SqlConnection(KetNoiDB.getconnect()); con.Open(); SqlCommand cmd = new SqlCommand(sql, con); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@mahd", et.MaHD); cmd.Parameters.AddWithValue("@masp", et.MaSP); cmd.Parameters.AddWithValue("@soluong", et.SoLuong); cmd.Parameters.AddWithValue("@dongia", et.GiaNhap); cmd.Parameters.AddWithValue("@thanhtien", et.ThanhTien); cmd.ExecuteNonQuery(); cmd.Dispose(); con.Close(); }