public bool update(Model.borrowrecord borrowrecordmodel)
        {
            string tablename = typeof(borrowrecord).Name;
            string contion   = string.Format("guid='{0}'", borrowrecordmodel.guid);
            string strsql    = string.Format("WrenchID_id='{0}',returnDate='{1}',returnOperator='{2}',returnUser='******',is_return='{4}',comment='{5}'", borrowrecordmodel.WrenchID, borrowrecordmodel.returnDate = DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss"), borrowrecordmodel.returnOperator, borrowrecordmodel.returnUser, borrowrecordmodel.is_return ?1:0, borrowrecordmodel.comment);

            return(ServerHelp.updateByWhere(tablename, _webip, contion, strsql));
        }
 public bool update(Model.borrowrecord borrowrecordmodel)
 {
     throw new NotImplementedException();
 }