public ActionResult Details(Guid id)
        {
            OfferOfferDetailVM offerOfferDetailVM = new OfferOfferDetailVM();

            offerOfferDetailVM.Offer        = _os.GetOffer(id).Data;
            offerOfferDetailVM.OfferDetails = _os.GetOfferDetail(id).Data;
            return(View(offerOfferDetailVM));
        }
        public ActionResult Add(OfferOfferDetailVM offerOfferDetailVM, Guid id)
        {
            var result = _os.Add(offerOfferDetailVM.Offer, offerOfferDetailVM.OfferDetails, id);

            ViewBag.Sonuc      = result.Message;
            ViewBag.SonucState = result.State;
            return(View(offerOfferDetailVM));
        }