public ActionResult AlterarBanner(Banner banner, HttpPostedFileBase file, string AntigoBanner)
        {
            MultimidiaFacade facade = new MultimidiaFacade();
            try
            {
                facade.SalvarBanner(banner, file, AntigoBanner);
                return RedirectToAction("Index");
            }
            catch
            {
                string[] filePaths = Directory.GetFiles(Server.MapPath("~/AppData/Banner/"));

                for (int i = 0; i < filePaths.Length; i++)
                {
                    filePaths[i] = Path.GetFileName(filePaths[i]);
                }

                List<string> listString = filePaths.ToList<string>();

                listString.Insert(0, "");

                SelectList list = new SelectList(listString);

                ViewBag.Arquivos = list;

                ViewData["Locais"] = new SelectList(facade.PesquisarLocal(null), "Codigo", "Descricao");
                return View(banner);
            }
        }
 public ActionResult CadastrarBanner(Banner banner, HttpPostedFileBase file)
 {
     MultimidiaFacade facade = new MultimidiaFacade();
     try
     {
         facade.SalvarBanner(banner, file);
         return RedirectToAction("Index");
     }
     catch
     {
         ViewData["Locais"] = new SelectList(facade.PesquisarLocal(null), "Codigo", "Descricao");
         return View(banner);
     }
 }