I get this question a lot so let's record my answer.
How do you populate a drop-down with the returned results of a web service? Let's say the web service returns a repeating XML node (FirstName, LastName).
Do not try to use Dynmaic Data Bindings just yet. They only work the first time you call them as per Adobe's own: http://forms.stefcameron.com/2006/07/29/dynamic-properties/ (Read to the bottom).
You'll have to do it manually with JavaScript. It's real easy though...
Continue reading Populate a drop-down with a web service in a PDF..
