[HttpPost]
        public ContentResult Index(int id, string enid)
        {

            FileUpload f = new FileUpload();

            foreach (string file in Request.Files)
            {
                HttpPostedFileBase hpf = Request.Files[file] as HttpPostedFileBase;
                string[] nameext;

                string uniname; //creiamo un nome univoco
                nameext=hpf.FileName.Split('.');
                uniname = nameext[0] + '.' + nameext[1];
                if (hpf.ContentLength == 0)
                    continue;
                
                string entita = enid;
                

                if (!Directory.Exists(@"\\192.168.0.21\TestNet\" + entita))
                    Directory.CreateDirectory(@"\\192.168.0.21\TestNet\" + entita);

                string savedFileName = Path.Combine((@"\\192.168.0.21\TestNet\" + entita), Path.GetFileName(uniname));

                

                hpf.SaveAs(savedFileName);
        
                f.Nome = uniname;
                f.ext = nameext[1]; 
                f.Dimensione = hpf.ContentLength;
                f.Tipo = hpf.ContentType;
                f.Utente = User.Identity.Name;
                f.Modificato = DateTime.Now;
                f.Entita = entita;
                f.idmadre = id;
               
                db.FileUpload.Add(f);
                db.SaveChanges();

            }
            
            return Content("{\"name\":\"" + f.Nome + "\",\"type\":\"" + f.Tipo + "\",\"size\":\"" + string.Format("{0} bytes", f.Dimensione) + "\"}", "application/json");
        }
    }

var info = new FileInfo(savedFileName);

if (info.Exists && info.Length > 0) {
  f.Nome = uniname;
  f.ext = nameext[1]; 
  f.Dimensione = hpf.ContentLength;
  f.Tipo = hpf.ContentType;
  f.Utente = User.Identity.Name;
  f.Modificato = DateTime.Now;
  f.Entita = entita;
  f.idmadre = id;
               
  db.FileUpload.Add(f);
  db.SaveChanges();
}