GmailNotifier.MainForm.NextButtonClicked C# (CSharp) Метод

        void NextButtonClicked(object sender, ThumbnailButtonClickedEventArgs e)
        {
            if (_currentlyViewing == _gmailClient.Emails.Count - 1)
                return;

            _thumbForm.Invoke(new Action<int>(_thumbForm.UpdatePreviewThumb), _currentlyViewing + 1);

            EnableAppropriateButtons();
        }