protected override async void OnExit(object sender,
                                             RoutedEventArgs e)
        {
            base.OnExit(sender, e);

            await StorageManager.SetPostCommentDraft(
                SettingsManager.PersistentSettings.CurrentUser.Id,
                ViewModel.CurrentPostData.Id,
                WriteComment.CommentText,
                WriteComment.IsAnonymous)
            .ConfigureAwait(true);

            CommentsList.CommentsWrapPanel.Children.Clear();

            CommentsList.UpdateLayout();
            UpdateLayout();
            GC.WaitForPendingFinalizers();
            GC.Collect();

            if (!IsOnExitActive)
            {
                e.Handled = true;
                return;
            }
        }
        protected override async void OnEnter(object sender,
                                              RoutedEventArgs e)
        {
            base.OnEnter(sender, e);

            CommentsList.UpdateLayout();
            UpdateLayout();
            GC.WaitForPendingFinalizers();
            GC.Collect();

            if (!IsOnEnterActive)
            {
                e.Handled = true;
                return;
            }

            PostScrollViewer
            .ScrollToVerticalOffset(0.0);

            await UpdatePost()
            .ConfigureAwait(true);

            var draft = await StorageManager.GetPostCommentDraft(
                SettingsManager.PersistentSettings.CurrentUser.Id,
                ViewModel.CurrentPostData.Id)
                        .ConfigureAwait(true);

            WriteComment.CommentText = draft.CommentText;
            WriteComment.IsAnonymous = draft.IsAnonymous;

            WriteComment.ContentTextBox.ScrollToEnd();
            WriteComment.ContentTextBox.CaretIndex = draft.CommentText.Length;
            WriteComment.ContentTextBox.Focus();

            if (PostScrollViewer.VerticalOffset >= PostScrollViewer.ScrollableHeight - 20)
            {
                PostScrollViewer.ScrollToVerticalOffset(0.0);
            }
        }