public ForumFormPresenter(IForumFormView view, IForumProvider provider)
        {
            _view = view;
            _provider = provider;

            _view.Load += Load;
            _view.Create += Create;
            _view.Update += Update;
        }
        public ForumListPresenter(IForumListView view, IForumProvider provider)
        {
            _view = view;
            _provider = provider;

            _view.Load += Load;
            _view.New += New;
            _view.Show += Show;
        }
        public ForumItemPresenter(IForumItemView view, IForumProvider provider)
        {
            _view = view;
            _provider = provider;

            _view.Load += Load;
            _view.Edit += Edit;
            _view.Delete += Delete;

            _view.NewTopic += NewTopic;
            _view.ShowTopic += ShowTopic;
        }