public ActionResult Create(Answer model)
        {
            if(ModelState.IsValid)
            {
                AnswerRepository.Insert(model);
                AnswerRepository.Save();
            }

            FillDropdownValues();
            return View(model);
        }
        public ActionResult EditPost(Answer formModel)
        {
            if (ModelState.IsValid)
            {
                var modelDb = AnswerRepository.Find(formModel.ID);
                if(this.TryUpdateModel(modelDb))
                {
                    AnswerRepository.Update(modelDb);
                    AnswerRepository.Save();

                    return RedirectToAction("Index");
                }
            }

            FillDropdownValues();
            return View(formModel);
        }