public void SetNewsUrl(NewsItem news)

        {

            using (var db = new DbContext())

            {

                var newsTitle = news.Topic;

                var urltitle = Regex.Replace(newsTitle, "[^a-zA-Z0-9]", " ");

                urltitle = string.Join(" ", urltitle.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries));

                urltitle = Regex.Replace(urltitle, "[ ]", "-");

                news.urlstring = urltitle;

​

                db.Entry(news).State = EntityState.Modified;

                //db.NewsItem.AddOrUpdate(news);

                db.SaveChanges();

            }

        }