public ActionResult Posts(int?CatId, string[] searchTag, string searchString)
        {
            newsList.Clear();
            ViewBag.CurrentSearchTag    = searchTag;
            ViewBag.CurrentSearchString = searchString;
            var news       = repo.GetAllNews();
            var categories = repo.GetAllCategory();
            var tags       = repo.GetAllTags();

            newsList.Clear();

            foreach (var post in news)
            {
                newsList.Add(new NewsViewModel()
                {
                    News        = news,
                    Id          = post.Id,
                    Tittle      = post.Tittle,
                    Description = post.Description,
                    Body        = post.Body,
                    PostedDate  = post.PostedDate,
                    Modified    = post.Modified,
                    Category    = post.Category,
                    CategoryID  = post.CategoryID,
                    NewsTags    = post.NewsTags,
                    AllCategory = categories,
                    AllTags     = tags
                });
            }

            if (!String.IsNullOrEmpty(searchString))
            {
                newsList = newsList.Where(n => n.Tittle.ToLower().Contains(searchString.ToLower()) ||
                                          n.Description.ToLower().Contains(searchString.ToLower()) ||
                                          n.Category.CategoryName.ToLower().Contains(searchString.ToLower())).ToList();
            }
            //category filter
            if (CatId != null)
            {
                newsList.Clear();
                var newscatfilter = repo.CategoryFilter(CatId);
                foreach (var post in newscatfilter)
                {
                    newsList.Add(new NewsViewModel()
                    {
                        News        = news,
                        Id          = post.Id,
                        Tittle      = post.Tittle,
                        Description = post.Description,
                        Body        = post.Body,
                        PostedDate  = post.PostedDate,
                        Modified    = post.Modified,
                        Category    = post.Category,
                        CategoryID  = post.CategoryID,
                        NewsTags    = post.NewsTags,
                        AllCategory = categories,
                        AllTags     = tags
                    });
                }
            }



            ViewBag.AllCategory = categories;
            CategoryList();
            ViewBag.AllTags = tags;
            return(PartialView("Posts"));
        }