If HTML text is used and the user selects a button or hyperlink, a ResponseSubmitted event handler is called with the event argument Notification.ResponseSubmittedEventArgs. The notification event contains the following parsed information:
Response – The original response.
Action – Action defined in the HTML text. Allowable values are "notify", "hyperlink" or "unknown."
Arguments – Notify arguments (lstbx=1&chkbx=on) or hyperlink name.