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 public bool savebtn(string companyName, string contactName, string phone, string email, DateTime saleDate, string number, string brief, string goods, Decimal quotation, string seller, string handler)
        {
            //////DAL.Sale.Insert(seller, handler, brief, goods);//事务处理还是昨天的那个错误,直接插入是正确的!
            //QueryCommandCollection coll = new QueryCommandCollection();
            //QueryCommand insert = new QueryCommand("insert sales(companyName,contactName,phone,email,saleDate,number,quotation,brief, goods,seller,handler) values(@companyName,@contactName,@phone,@email,@saleDate,@number,@quotation,@brief,@goods,@seller,@handler)");

            //insert.Parameters.Add("@companyName", companyName);
            //insert.Parameters.Add("@contactName", contactName);
            //insert.Parameters.Add("@phone", phone);
            //insert.Parameters.Add("@email", email);

            //insert.Parameters.Add("@saleDate", saleDate);
            //insert.Parameters.Add("@number", number);
            //insert.Parameters.Add("@quotation", quotation);

            //insert.Parameters.Add("@brief", brief);
            //insert.Parameters.Add("@goods", goods);
            //insert.Parameters.Add("@seller", seller);
            //insert.Parameters.Add("@handler", handler);
            //coll.Add(insert);
            //DataService.ExecuteTransaction(coll);
            //return true;

            DAL.Sale insert = new Product.DAL.Sale();
            insert.CompanyName = companyName;
            insert.ContactName = contactName;
            insert.Phone = phone;
            insert.Email = email;
            insert.SaleDate = saleDate;

            insert.Number = number;
            insert.Quotation = quotation;
            insert.Brief = brief;
            insert.Goods = goods;
            insert.Seller = seller;

            insert.Handler = handler;
            try
            {
                insert.Save();
                return true;
            }
            catch
            {
                return false;
            }
         
        }