Adding listchoices to Pdfform with c# code
<p>I'm trying to add choices to a List-field within a pdf form via C# and the itextsharp library. But i cant find a way to do this.
The form already exists, i created it with Acrobat. I would like that the Listfield choices from the PDF are the same as in my program.
Therefore I want to create the options in the list-fields via itextsharp to reduce the maintenance.
But I cant find away to do this. With the PDFstamper from the library I am able to fill the Fields from the form. And Color some fields.
Is there a  possibility to add options to a List-field via c# Code ? 
Would be great if someone knows the answer and shows me a way to realize this. </p>