public ActionResult Create(Survey survey)
        {
            survey.UserId = WebSecurity.GetUserId(User.Identity.Name);
            //survey.CreationDate = DateTime.Now;
            if (ModelState.IsValid)
            {
                db.Surveys.Add(survey);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(survey);
        }
        public ActionResult Edit(Survey survey)
        {
            survey.UserId = WebSecurity.GetUserId(User.Identity.Name);

            if (ModelState.IsValid)
            {
                db.Entry(survey).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(survey);
        }