public ActionResult Delete(int id)
        {
            ConnectionWithDatabase connectionWithDatabase = new ConnectionWithDatabase();

            connectionWithDatabase.DeleteData(id);
            return(RedirectToAction("Index"));
        }
        public ActionResult Index(HttpPostedFileBase zip)
        {
            var filename = Server.MapPath("~/Uploads/" + zip.FileName);
            var file     = Server.MapPath("~/Uploads/");

            if (System.IO.File.Exists(filename))
            {
                System.IO.File.Delete(filename);
            }
            zip.SaveAs(filename);
            // jekono file byte a convert kore dibe.
            byte[] bytes = System.IO.File.ReadAllBytes(filename);

            ConnectionWithDatabase connectionWithDatabase = new ConnectionWithDatabase();

            connectionWithDatabase.storeData(bytes, zip.FileName);
            System.IO.File.Delete(filename);

            // jekono file byte theke zip a convert kore dibe. shudhu zip na jodi extention
            // .png hoy .mp4 hoy .jpg hoy tao auto convert hoye jabe.
            //System.IO.File.WriteAllBytes(file+ "newFile.zip", bytes);

            Response.Redirect(Request.Url.ToString(), true);

            List <ZipFileStorAndDownload_tbl> list = db.ZipFileStorAndDownload_tbl.ToList();

            list = list.OrderByDescending(it => it.Id).ToList();
            return(View(list));
        }