public string remove_Curve(string curveCode, string venderName = "local")
        {
            try
            {
                CURVE_DATA_Table_DAO dao = new CURVE_DATA_Table_DAO();

                dao.CURVE_CODE_ = curveCode;

                dao.deleteCode(DataBaseConnectManager.ConnectionFactory("myDB"));

                return "delete complete";
            }
            catch (Exception e)
            {
                return "delete fail : " + e.Message + " , " + e.Source;
            }
        }