ActivEarth.Competition.Contests.DisplayContestPage.JoinContest C# (CSharp) Метод

        protected void JoinContest(object sender, EventArgs e)
        {
            if(isValidId)
            {
                if (isGroup)
                {
                    Group group = GroupDAO.GetAllGroupsByOwner(user)[GroupSelection.SelectedIndex];
                    ContestManager.AddGroup(contestId, group);
                }
                else
                {
                    ContestManager.AddUser(contestId, user);
                }

                LoadDataOnPage();
            }
        }