How can I set XFA data in a static XFA form in iTextSharp and get it to save?

Question

I\'m having a very strange issue with XFA Forms in iText / iTextSharp (iTextSharp 5.3.3 via NuGet). I am trying to fill out a static XFA styled form, however my changes are

Answer 1

I found the issue. The replacement DomDocument needs to be the entire merged XML of the new document, not just the data or datasets portion.

Answer 2

I upvoted your answer, because it's not incorrect (I'm happy my reference to the demo led you to have another look at your code), but now that I have a second look at your original code, I think it's better to use the book example:

public byte[] ManipulatePdf(String src, String xml) {
  PdfReader reader = new PdfReader(src);
  using (MemoryStream ms = new MemoryStream()) {
    using (PdfStamper stamper = new PdfStamper(reader, ms)) {
      AcroFields form = stamper.AcroFields;
      XfaForm xfa = form.Xfa;
      xfa.FillXfaForm(XmlReader.Create(new StringReader(xml)));
    }
    return ms.ToArray();
  }
}

As you can see, it's not necessary to replace the whole XFA XML. If you use the FillXfaForm method, the data is sufficient.

Note: for the C# version of the examples, see http://tinyurl.com/iiacsCH08 (change the 08 into a number from 01 to 16 for the examples of the other chapters).