Web service call problem

Question

We are trying to call a web service and pass as parameter
some complex
types. When invoking the web service everything works well on
flex
side, but on the server side the input parameters we get from
flex are
not correct - complex type is removed and the elements of the
complex
type are sent. See the example:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:WebService id="ws_id" wsdl="link" useProxy="false"
fault="wsFault(event)">
<mx:operation id="op_id" name="op"
result="wsResult(event)">
<mx:request>
<parameters>
<parameter1>{value1}</parameter1>
<parameter2>{value2}</parameter2>
<parameter3>{value3}</parameter3>
<parameter4>
<parameter4_1>{value4_1}</parameter4_1>
<parameter4_2>{value4_2}</parameter4_2>
<parameter4_3>{value4_3}</parameter4_3>
</parameter4>
</parameters>
</mx:request>
</mx:operation>
</mx:WebService>
</mx:Application>
on server side we get this:
<parameters>
<parameter1>{value1}</parameter1>
<parameter2>{value2}</parameter2>
<parameter3>{value3}</parameter3>
<parameter4_1>{value4_1}</parameter4_1>
<parameter4_2>{value4_2}</parameter4_2>
<parameter4_3>{value4_3}</parameter4_3>
</parameters>
Instead of :
<parameters>
<parameter1>{value1}</parameter1>
<parameter2>{value2}</parameter2>
<parameter3>{value3}</parameter3>
<parameter4>
<parameter4_1>{value4_1}</parameter4_1>
<parameter4_2>{value4_2}</parameter4_2>
<parameter4_3>{value4_3}</parameter4_3>
</parameter4>
</parameters>
Any idea how is it possible to send complex type as web
service input
from flex ?

Answer 1

May be wrong, but I don't think the WebService
<request> tag can accept nested parameters, such as what
you're doing with <parameter4>. Each element name in the xml
pair must match a parameter name in the Web Service WSDL. I think
Flex would just ignore <parameter4> and not send it.