public ActionResult Guest(Comment comment) { CommentsManager commentsManager = new CommentsManager(); ViewBag.Comments = commentsManager.GetData(); //add new comment if (Request.HttpMethod == "POST") { if (ModelState.IsValid) { comment.CommentDate = DateTime.Now; commentsManager.AddItem(comment); ViewBag.Comments = commentsManager.GetData(); return(View()); } else { return(View()); } } return(View()); }