public News Update(News news) { var item = _newsProvider.GetAll().SingleOrDefault(w => w.Id == news.Id); if (item == null) { return(null); } item.Title = news.Title; item.Text = news.Text; item.AllowComments = news.AllowComments; item.ModifiedAtUtc = DateTime.UtcNow; _newsProvider.Update(item); return(item); }