private void HandleMemoInfoChanged(object sender, MemoInfoEventArgs e)
        {
            var infos = _memoListView.MemoListBox.MemoInfos;

            if (infos.Contains(e.MemoInfo))
            {
                UpdateMemoListBox(true);
            }
        }
        private void HandleMemoInfoAdded(object sender, MemoInfoEventArgs e)
        {
            var provider = _workspaceView.WorkspaceTree.CurrentMemoInfoListProvider;

            if (provider == null)
            {
                _memoListView.MemoListBox.UpdateList(new MemoInfo[0], false, false);
            }
            else
            {
                var newInfos = provider.MemoInfos;
                if (newInfos.Contains(e.MemoInfo))
                {
                    _memoListView.MemoListBox.UpdateList(newInfos, false, true);
                }
            }
        }