public JsonResult CommentDelete(int id)
 {
     JsonResult rez = new JsonResult();
     Comment cmn = new Comment() { Id = id };
     con.Entry(cmn).State = System.Data.EntityState.Deleted;
     con.SaveChanges();
     rez.Data = "Коментарий удален.;true";
     return rez;
 }
 public JsonResult AddComment(Comment cmt)
 {
     JsonResult rez = new JsonResult();
     if (ModelState.IsValid && (User.Identity.IsAuthenticated || this.IsCaptchaVerify("Captcha is not valid"))) {
         try {
             con.Comments.Add(cmt);
             con.SaveChanges();
             rez.Data = RenderPartialViewToString("CommentRead", cmt);
         } catch (Exception e) {
             rez.Data = e.Message;
         }
     } else {
         foreach (var item in ModelState.Keys)
             for (int i = 0; i < ModelState[item].Errors.Count; i++)
                 rez.Data += ModelState[item].Errors[i].ErrorMessage + "\r\n";
     }
     return rez;
 }