public ActionResult DeleteBinhLuan(int id)
        {
            CommentModel cm = new CommentModel();

            cm.DeleteBinhLuan(id);
            return(RedirectToAction("TimBinhLuan"));
        }
 public ActionResult MultibleDel(List <int> lstdel)
 {
     foreach (var item in lstdel)
     {
         CommentModel spm = new CommentModel();
         spm.DeleteBinhLuan(item);
     }
     return(RedirectToAction("TimBinhLuan"));
 }