Binding web service to multiple drop-down fields.

Question

I am getting alogn quite well using Web Services with Adobe XFA Forms. I was able to bind very complex web services results to dynamic PDF Forms.
I was also able to bind Drop-Down Items to a web service.
I still need little help though.
I have 2 Drop-Down Fields:
Hijri Year
Hijri Month
They are retrieved by Web Service developed over SAP Systems.
The web service will return a nested XML Structure of Hijri Year Array of Items, where each Year Item, will have nested array of months item.
When I click on the button to execute the Web Service, the Year Drop Down is populated. So now how to populate the Month Drop-Down Items ?
It is a bit tricky, and I cannot figure out what to do.
Please help.
Tarek.

Answer 1

Well, I was almost about to do that with very little coding, but looks like it is not possible. I seems that I have to bind the XML to the dorp-down manually.
I am using Stefan Web Service Per-Processor model. I am capturing the web service reulst, and loading the node I want to xfd.datasets.data.
I am doing something like this:
Sample XML:
<?xml version="1.0" encoding="UTF-8"?>
<root>
<AttendancePeriod>
   <item>
      <Year>1430</Year>
      <Periods>
         <item>01</item>
         <item>02</item>
         <item>03</item>
         <item>04</item>
         <item>05</item>
         <item>06</item>
         <item>07</item>
         <item>08</item>
         <item>09</item>
         <item>10</item>
         <item>11</item>
         <item>12</item>
      </Periods>
   </item>
   <item>
      <Year>1431</Year>
      <Periods>
         <item>01</item>
         <item>02</item>
         <item>03</item>
         <item>04</item>
         <item>05</item>
         <item>06</item>
         <item>07</item>
         <item>08</item>
         <item>09</item>
      </Periods>
   </item>
</AttendancePeriod>
</root>
DataConnection Post Execute Event:
var rootXml = null;
var soapFault = null;
if (xfa.event.soapFaultCode)
soapFault = {code:xfa.event.soapFaultCode, message:xfa.event.soapFaultString};
else
rootXml = xfa.datasets.connectionData.DataConnection.Body;
preProcessor.processResponse(rootXml, soapFault);
The Response Processor function:
* Called after the web service response has been received.
* @param rootXml XML node which is the root of the web service response XML data. Null if a fault occurred.
* @param soapFault Object with 'code' and 'message' properties if a fault occurred; null otherwise.
function processResponse(rootXml, soapFault)
console.clear();
if (rootXml)
  var AttendPeriod = rootXml.GetAttendancePeriodsResponse.AttendancePeriod;
  xfa.datasets.data.root.nodes.append(AttendPeriod);
  xfa.form.remerge();
  console.println(AttendPeriod.saveXML());
else if (soapFault)
  console.println("Error = ");
  console.println("Fault code: " + soapFault.code);
  console.println("Fault message: " + soapFault.message);
console.show();
Then, I will bind the drop-down list to the XML.
The above code is working fine, but the only problem is xfa.form.remerge(), which will clear all other fields, I am not sure why ?
Seems I have to use a loop to bind the list items one by one, right ?!!
Tarek.