public virtual ActionResult PostComment(Comment comment)
        {
            if (ModelState.IsValid)
            {
                comment.Date = DateTime.Now;
                db.Comments.Add(comment);
                db.SaveChanges();
            }

            return PartialView("Comment", comment);
        }
        public virtual ActionResult Create(Comment comment)
        {
            if (ModelState.IsValid)
            {
                db.Comments.Add(comment);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            ViewBag.ArticleId = new SelectList(db.Articles, "Id", "Title", comment.ArticleId);
            return View(comment);
        }
 public virtual ActionResult Edit(Comment comment)
 {
     if (ModelState.IsValid)
     {
         db.Entry(comment).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     ViewBag.ArticleId = new SelectList(db.Articles, "Id", "Title", comment.ArticleId);
     return View(comment);
 }