public ActionResult Edit(tbl_SystemContent content)
 {
     if (ModelState.IsValid)
     {
         db.Entry(content).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(content);
 }
        public ActionResult AddBanner(tbl_SystemContent content, HttpPostedFileBase file)
        {
            content.PropertyContent = file.FileName;
            if (ModelState.IsValid)
            {
                if (file != null)
                {
                    char DirSeparator = System.IO.Path.DirectorySeparatorChar;
                    string FilesPath = "~\\Images";
                    string full_path = Server.MapPath(FilesPath).Replace("SystemContent", "").Replace("AddBanner", "");
                    if (content.PropertyContent + "" != "")
                        FileUpload.DeleteFile(content.PropertyContent, full_path);

                    content.PropertyContent = FileUpload.UploadFile(file, full_path);
                }
                db.Entry(content).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(content);
        }