public EventTabViewController(EventItem eventItem)
        {
            EventItem currentEvent = eventItem ?? EventItem.NullEvent();

            var eventDetailsViewController = new EventDetailsViewController(eventItem ?? EventItem.NullEvent())
            {
                TabBarItem = new UITabBarItem {
                    Title = "Описание", Image = UIImage.FromBundle("info_filled-32.png")
                }
            };

            var participantsListViewController = new ParticipantsListViewController(currentEvent.ParticipantItems)
            {
                TabBarItem = new UITabBarItem {
                    Title = "Участники", Image = UIImage.FromBundle("group-32.png")
                }
            };

            var commentsListViewController = new CommentsListViewController
            {
                TabBarItem = new UITabBarItem {
                    Title = "Осбуждение", Image = UIImage.FromBundle("topic-32.png")
                }
            };

            ViewControllers = new UIViewController[] {
                eventDetailsViewController,
                participantsListViewController,
                commentsListViewController
            };

            Title = currentEvent.Name;

            TabBar.Translucent = false;
        }
 public ParticipantsListTableSource(ParticipantsListViewController parentController)
 {
     _parentController = parentController;
 }