public ActionResult Create(GiftModel.GiftModelShow item, HttpPostedFileBase file = null, string[] MemberTypelist = null)
        {
            try
            {
                foreach (var i in MemberTypelist)
                { item.MemberType += i + ","; }

                //刪除最後一個逗號
                item.MemberType = item.MemberType.Remove(item.MemberType.LastIndexOf(","), 1);
               
                if (data.Insert(item, file, "Gift/" + item.Id, Server) <= 0)
                {
                    TempData["err"] = "Gift_0";
                    return RedirectToAction("Index");
                }
            }
            catch { TempData["err"] = "Gift_1"; }
            return RedirectToAction("Index");
        }
        public ActionResult Edit(GiftModel.GiftModelShow item, int p = 1, string[] MemberTypelist = null)
        {
            {
                s26webDataContext db = new s26webDataContext();
                var old = db.Gift.FirstOrDefault(f => f.Id == item.Id);
                db.Connection.Close();
                foreach (var i in MemberTypelist)
                { item.MemberType += i + ","; }

                //刪除最後一個逗號
                item.MemberType = item.MemberType.Remove(item.MemberType.LastIndexOf(","), 1);

                if (data.Update(item) <= 0)
                {
                    TempData["err"] = "Gift_5";
                    return RedirectToAction("Index");
                }
            }
            return RedirectToAction("Index", new { p = p });
        }