protected void articleRating_Changed(object sender, AjaxControlToolkit.RatingEventArgs e)
        {
            if (User.Identity.Name == "")
            {
                warning.Text = "Članak mogu ocijeniti samo prijavljeni korisnici.";
                warning_block.Visible = true;
            }
            else
            {
                ClanciOcjene grade = new ClanciOcjene();
                grade.ClanakID = articleId;
                grade.KorisnikID = Convert.ToInt32(User.Identity.Name);
                grade.Ocjena = articleRating.CurrentRating;
                grade.DatumKreiranja = DateTime.Now;
                grade.DatumIzmjene = DateTime.Now;
                DAClanci.GradeArticle(grade);
                articleRating.ReadOnly = true;

                ratingLabel.Text = "Vaša ocjena: " + grade.Ocjena.ToString();
                dateRatedLabel.Text = string.Format("{0:dd.MM.yyyy}", grade.DatumKreiranja);
                rating_block.Visible = true;

                BindGrade();
            }
        }
 public static void GradeArticle(ClanciOcjene grade)
 {
     Connection.dm.ClanciOcjene.Add(grade);
     Connection.dm.SaveChanges();
 }