InfoPath Dev

is there a way using code (C#) to update a field and insert a newline on a regular text field. I can concat data from the field each time I update, but cant figure out how to concat and insert the new line. I have done this before using rules, but I am interested if there is a way using code.

thanks

Well I was able to solve this myself, using code and the newline XML file.

public void UpdateCommentHist(XPN comment, XPN hist)
        {
            FormSupport fs = null;
            BWSharePoint BWsp = null;
            SetupSupport(ref fs, ref BWsp);

            XPN root = CreateNavigator();
            XPN errormessage = root.SelectSingleNode(xErrorMsg, NamespaceManager);
            try
            {
               
               XPN newline = DataSources["NewLine"].CreateNavigator().SelectSingleNode("/linebreaks/newLine", NamespaceManager);
        // query ds
               DataSources["NewLine"].QueryConnection.Execute();

                if (comment.Value != "")
                {
  // create time stamp
                    string dt = DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss");
                    hist.SetValue(newline.Value + dt + ": " + comment.Value + " *** " + hist.Value);
                    //comment.SetValue(string.Empty);
                }
                else
                {
                    //hist.SetValue(string.Empty);
                }
            }
            catch (Exception ex)
            {
                LogServ.LogError(ErrCat.TraceError, StrHndlr.strHandleError(ex));
                fs.DeleteNil(errormessage);
                errormessage.SetValue(StrHndlr.strHandleError(ex));
            }
        }

unfortunately this method did not fit my needs. The comment field needed to change (change event). if I entered comments then hit submit, it would not submit on first click, only on second click,  i did not like this. I actually went back to using rules on my submit button to accomplish this