// GET: PostEditor
 public ActionResult CreatePost()
 {
     PostService PostService = new PostService(User.Identity.GetUserId());
     PostEditVm model = PostService.GetPostEditVm();
     IList<IContentType> Contents = Session["PostContents"] as IList<IContentType>;
     if (Contents != null)
     {
         model.PostContents = Contents;
     }
     return View("EditPost", model);
 }
        public ActionResult EditPost(int PostId)
        {
            Post Model = (from a in _unitOfWork.db.Posts
                          where a.PostId == PostId
                          select a)
                          .SingleOrDefault();
            PostService PostService = new PostService(Model);
            PostEditVm retModel = PostService.GetPostEditVm();
            IList<IContentType> Contents = Session["PostContents"] as IList<IContentType>;
            if (Contents == null)
            {
                Contents = new List<IContentType>();
            }
            Contents = retModel.PostContents;
            Session["PostContents"] = Contents;
            //IList<IContentType> Contents2 = Session["PostContents"] as IList<IContentType>;
            //var Contents3 = Session["PostContents"];
            //IList<IContentType> Contents4 = Contents3 as IList<IContentType>;

            return View("EditPost", retModel);
        }