public void change(WebHelper w, Dictionary <string, object> kv) { Model.rp_t_supcust_fy_master ord = w.GetObject <Model.rp_t_supcust_fy_master>(); ord.pay_date = System.DateTime.Now; ord.approve_flag = "0"; ord.approve_man = ""; ord.approve_date = System.DateTime.MinValue; List <Model.rp_t_supcust_fy_detail> lines = w.GetList <Model.rp_t_supcust_fy_detail>("lines"); foreach (Model.rp_t_supcust_fy_detail line in lines) { line.sheet_no = ord.sheet_no; } bll.Change(ord, lines); }