public ActionResult Create(Address addr)
        {
            if (ModelState.IsValid)
            {
                _iRepository.Add(addr);

                return RedirectToAction("Index");
            }
            else
                return View();
        }
 public ActionResult Edit(int id, Address addr)
 {
     if (ModelState.IsValid)
     {
         _iRepository.Update(addr);
         return RedirectToAction("Index");
     }
     else
         return View();
 }