.Net generating wrong function signature

["Agarwal, Naresh" <na...@informatica.com>]

I've written a doc/literal WSDL. This has one operation "echo". 
 
The input message for this operation refers to an element "ipml:echo" . This element is of complextype which contains a sequence.
 
Output message refers to an element "impl:echoReturn. This element is of complex type which contains nothing.
 
When I create client stubs with WSDL, essentially this should be mapped to an operation which takes void and returns a bean (which encapsulates the sequence)
 
On Axis, I get the following signature 
 
wstest.local.Testbean echo(wstest.local.EchoRequest parameters) 
 
On .Net, I get the following signature
 
public int echo([System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] out string city, [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] out string state) {
 
Thus instead of a bean return type, .Net makes the first field of the sequence as return value and rest of the fields become out parameters. 
 
Is this a bug in .Net or there is some problem with my WSDL?
 
The WSDL is as follows:
 
<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions targetNamespace="urn:local:wstest" xmlns=" http://schemas.xmlsoap.org/wsdl/" xmlns:apachesoap=" http://xml.apache.org/xml-soap" xmlns:impl="urn:local:wstest" xmlns:intf="urn:local:wstest" xmlns:soapenc=" http://schemas.xmlsoap.org/soap/encoding/" xmlns:wsdl=" http://schemas.xmlsoap.org/wsdl/" xmlns:wsdlsoap=" http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd=" http://www.w3.org/2001/XMLSchema">
 <wsdl:types>
  <schema targetNamespace="urn:local:wstest" 
         xmlns=" http://www.w3.org/2001/XMLSchema">
   
 <complexType name="EchoRequest"/>
 <element name="echo" type="impl:EchoRequest"/>
 
 <complexType name="testbean">
  <sequence> 
   <element name="pincode" type="xsd:int"/>
   <element name="city" type="xsd:string"/>
   <element name="state" type="xsd:string"/>
  </sequence>
 </complexType>
 
 <element name="echoReturn" type="impl:testbean"/>
  
  </schema>
 </wsdl:types>
 
 <wsdl:message name="echoRequest">
   <wsdl:part element="impl:echo" name="parameters"/>
 </wsdl:message>
 
 <wsdl:message name="echoResponse">
      <wsdl:part element="impl:echoReturn" name="parameters"/>
 </wsdl:message>
 
 <wsdl:portType name="echoInterface">
   <wsdl:operation name="echo">
      <wsdl:input message="impl:echoRequest" name="echoRequest"/>
      <wsdl:output message="impl:echoResponse" name="echoResponse"/>
   </wsdl:operation>
 </wsdl:portType>
 
 <wsdl:binding name="echoServiceSoapBinding" type="impl:echoInterface">
  <wsdlsoap:binding style="document" transport=" http://schemas.xmlsoap.org/soap/http"/ <http://schemas.xmlsoap.org/soap/http> >
  <wsdl:operation name="echo">
   <wsdlsoap:operation soapAction=""/>
    <wsdl:input name="echoRequest">
     <wsdlsoap:body namespace="urn:local:wstest" use="literal"/>
    </wsdl:input>
 
    <wsdl:output name="echoResponse">
     <wsdlsoap:body namespace="urn:local:wstest" use="literal"/>
    </wsdl:output>
  </wsdl:operation>
 </wsdl:binding>
 
 <wsdl:service name="echoService">
  <wsdl:port binding="impl:echoServiceSoapBinding" name="TestService">
   <wsdlsoap:address location=" http://localhost:8080/axis/services/TestService"/ <http://localhost:8080/axis/services/TestService> >
  </wsdl:port>
 </wsdl:service>
 
</wsdl:definitions>

 
thanks,
Naresh