public IActionResult insert_suplier(string sup_code, string sup_prefix, string sup_name, string sup_lastname, string sup_name_contact, string sup_num, string sup_road, string sup_district, string sup_amphur, string sup_province, string sup_postcode, string sup_tel, string sup_fax, string sup_trade, string sup_tax, string sup_email, string sup_web, string sup_credit_money, string sup_credit)
        {
            SuplierModel sp = new SuplierModel();

            sp.sup_prefix_id    = sup_prefix;
            sp.sup_name         = sup_name;
            sp.sup_name_contact = sup_name_contact;
            sp.sup_num          = sup_num;
            sp.sup_road         = sup_road;
            sp.sup_district     = sup_district;
            sp.sup_amphur       = sup_amphur;
            sp.sup_province     = sup_province;
            sp.sup_postcode     = sup_postcode;
            sp.sup_tel          = sup_tel;
            sp.sup_fax          = sup_fax;
            sp.sup_trade        = sup_trade;
            sp.sup_tax          = sup_tax;
            sp.sup_email        = sup_email;
            sp.sup_web          = sup_web;
            sp.sup_credit_money = sup_credit_money;
            sp.sup_credit_id    = sup_credit;

            sp.create_code();

            sp.insert_suplier();

            return(RedirectToAction("agent", "Suplier"));
        }