Dynamic parameter list in a webservice MXML request

Question

Hello,
I'd like to dynamically generate the request parameter of a
web service like that :
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:WebService id="pegasus"
wsdl="
http://myservice?wsdl"
useProxy="false"
load="headers();">
<mx:operation name=" myOperation
">
<mx:request>
<arg0>
<parameter1>{parameter1Input.text}</parameter1>
<parameter2>{parameter2Input.text}</parameter2>
<listParameter3>
<element1>????</element1>
<element1>????</element1>
<element1>????</element1>
<element1>????</element1>
</listParameter3>
</arg0>
</mx:request>
</mx:operation>
</mx:WebService>
So I'd like to know how to generate the list, with an unknown
number of elements, from a datagrid for example.
I tried to generate a XML from a variable like that :
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:WebService id="pegasus"
wsdl="
http://myservice?wsdl"
useProxy="false">
<mx:operation
name="myOperation">
<mx:request>
<arg0>
<parameter1>{parameter1Input.text}</parameter1>
<parameter2>{parameter2Input.text}</parameter2>
<listParameter3>
{myList}
</listParameter3>
</arg0>
</mx:request>
</mx:operation>
</mx:WebService>
<mx:Script>
<![CDATA[
public var myList:XML;
public function essai():XML {
// call this function before send
// populate myList from formulary
]]>
</mx:Script>
But it didn't work, can you help me ?

Answer 1

This current problem with the forum makes code almost
impossible to read. Hope they fix it soon.
You can build the request object in AS code. Use mxml to
declare the webservice. Then in a function do something like this
example:
//Sets up and invokes werservice call
private function getEmployees():Void
var sOperationName:String = "getList";
//Put the operation name in a var
var oRequest:Object = employeeWS[sOperationName].request;
//get a reference to the operations request object
oRequest.deptId = dept.selectedItem.data; //put the deptId
Name/Value pair in the request
var call = employeeWS[sOperationName].send(); /Invoke the
call
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