public IActionResult Add(int?id)
        {
            ViewBag.calist = caDal.GetList("");
            Blog m = new Blog();

            if (id != null)
            {
                m = dal.GetModel(id.Value);
            }
            return(View(m));
        }
        /// <summary>
        /// show blog
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public IActionResult Show(int id)
        {
            ViewBag.blogDal   = dal;
            ViewBag.calist    = cadal.GetList("");
            ViewBag.blogmonth = dal.GetBlogMonth();

            Model.Blog b = dal.GetModel(id);
            if (b == null)
            {
                return(Content("Not Found!"));
            }
            return(View(b));
        }