public ActionResult Create(FillTheBoxCreateViewModel viewModel)
        {
            if (ModelState.IsValid)
            {
                viewModel.FillTheBox.Descripcion = viewModel.FillTheBox.Enunciado.Replace("#", "______");

                db.FillTheBoxs.Add(viewModel.FillTheBox);
                db.SaveChanges();

                if (viewModel.AudioFile != null)
                {
                    viewModel.FillTheBox.FicheroAudio = viewModel.FillTheBox.Id + ".mp3";

                    string nameAndLocation = "~/media/upload/audio_fillthebox/" + viewModel.FillTheBox.FicheroAudio;
                    viewModel.AudioFile.SaveAs(Server.MapPath(nameAndLocation));

                    db.Entry(viewModel.FillTheBox).State = EntityState.Modified;
                    db.SaveChanges();
                }
                if (viewModel.ImageFile != null)
                {
                    viewModel.FillTheBox.UrlImagen = viewModel.FillTheBox.Id + ".jpg";

                    string nameAndLocation = "~/media/upload/imagen_fillthebox/" + viewModel.FillTheBox.UrlImagen;
                    viewModel.ImageFile.SaveAs(Server.MapPath(nameAndLocation));


                    db.Entry(viewModel.FillTheBox).State = EntityState.Modified;
                    db.SaveChanges();
                }

                return(RedirectToAction("Create", "FillTheBoxs", new { id = viewModel.FillTheBox.BloqueId }));
            }


            viewModel.Inicializar(viewModel.FillTheBox.BloqueId);
            return(View(viewModel));
        }
        // GET: Admin/FillTheBoxs/Create
        public ActionResult Create(int id)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            Bloque bloque = db.Bloques.SingleOrDefault(bl => bl.BloqueId == id);

            if (bloque == null)
            {
                return(HttpNotFound());
            }

            FillTheBoxCreateViewModel viewModel = new FillTheBoxCreateViewModel();

            viewModel.Inicializar(id);

            viewModel.FillTheBox = new FillTheBox();
            viewModel.FillTheBox.TipoEjercicioId = (int)TiposDeEjerciciosId.FillTheBox;
            viewModel.FillTheBox.BloqueId        = id;
            viewModel.FillTheBox.SubTemaId       = bloque.SubTemaId;
            viewModel.FillTheBox.AreaId          = viewModel.bloque.AreaId;
            return(View(viewModel));
        }