Generating Infopath Taskpane Help

Using a nice technique outlined on InfoPath Dev, I have been extensively using the infopath task pane to display context-aware form field help information. After deciding that manually generating help xml for my next form would be a big chore, I decided to develop a console app to extract all of the Leaf nodes of a form template and put them into a "InfopathDev" friendly xml file format.

Here is the relevent code to get you started:

public void WriteHelpText(System.IO.Stream outStream, string strTemplateFile)
{
    XmlDocument doc = new XmlDocument();
    try
    {
        doc.Load(strTemplateFile);
    }
    catch (System.IO.IOException ex)
    {
        throw new Exception("error reading file:" + strTemplateFile, ex);
    }
    XmlNodeList ndList = doc.SelectNodes("descendant::*[not(child::*)]");

    XmlTextWriter writer = new XmlTextWriter(
    outStream, System.Text.Encoding.UTF8);
    writer.Formatting = Formatting.Indented;
    writer.Indentation = 5;

    writer.WriteStartDocument(false);

    writer.WriteStartElement("Help");

    foreach (XmlNode nd in ndList)
    {
        writer.WriteStartElement("Field");

        //generate xpath attribute
        StringBuilder sb = new StringBuilder(nd.LocalName);

        //walk node path back to document source
        XmlNode parentNode = nd.ParentNode;

        do
        {
            sb.Insert(0, parentNode.LocalName + "/");
            parentNode = parentNode.ParentNode;
        } while (parentNode != (XmlNode)doc);

        writer.WriteAttributeString("xpath", sb.ToString());
        writer.WriteRaw(strDefaultHelpText);

        writer.WriteEndElement();//end Field Element
    }

    writer.WriteEndElement();//end Help Element
    writer.WriteEndDocument();//end document
    writer.Flush();
}