public async Task<List<GroupBuyStoreMenuImage>> Post(int id)
        {
            //var streamProvider = new MultipartFormDataStreamProvider(ServerUploadFolder);

            //await Request.Content.ReadAsMultipartAsync(streamProvider);



            var provider = new MultipartFileStreamProvider(Path.GetTempPath());

            // Read the form data.
            await Request.Content.ReadAsMultipartAsync(provider);
            foreach (MultipartFileData file in provider.FileData)
            {
                //string fileName = blobSaveFile(file);
                string fileName = localSaveFile(file);
                GroupBuyStoreMenuImage image = new GroupBuyStoreMenuImage()
                {
                    StoreId = id,
                    ImageUrl = fileName
                };

                using (var db = new HoGameEISContext())
                {
                    db.GroupBuyStoreMenuImages.Add(image);
                    db.SaveChanges();
                }
            }
            return Get(id);
        }
        public void Delete(int id)
        {
            GroupBuyStoreMenuImage image = new GroupBuyStoreMenuImage();
            using (var db = new HoGameEISContext())
            {
                image = db.GroupBuyStoreMenuImages.Where(o => o.ImageId == id).FirstOrDefault<GroupBuyStoreMenuImage>();

            }
            using (var db = new HoGameEISContext())
            {
                db.Entry(image).State = System.Data.Entity.EntityState.Deleted;
                db.SaveChanges();
            }

            deleteblobFile(image.ImageUrl);
        }