android webservices method getting null parameter value while calling

Question

when I invoke webservices method working fine without parameters. But with parameters I am getting null in the inside the webservice method.

Here my code and wsdl file

private static final String METHOD_NAME = "getCityList"; private static final String SOAP_ACTION = "http://service.country.com/" + METHOD_NAME; private static final String NAMESPACE = "http://service.country.com"; private static final String URL = "http://192.168.1.11:8080/Services/ws/country";

/** Called when the activity is first created. */  
@Override  
public void onCreate(Bundle savedInstanceState) {  
  super.onCreate(savedInstanceState);  
  setContentView(R.layout.main);  


  try{
  SoapObject request = new  SoapObject(NAMESPACE, METHOD_NAME);
  request.addProperty("countryId",5);

               SoapSerializationEnvelope   envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
               envelope.dotNet = true;
               envelope.setOutputSoapObject(request);

               AndroidHttpTransport  androidHttpTransport = new AndroidHttpTransport(URL);
               androidHttpTransport.call(SOAP_ACTION,envelope);

               Object result =   envelope.getResponse();
               System.out.println("RESULT"+ result.toString());

my xml file below

String String 0