Used a XI web service in dot net, but cannot access the message types .

I have created a web reference in dot net for a XI web service. In the front end i have a form which has 4 fields these are the fields of my request msg in XI. But when i compile the project, i get an error 'Reference to a non-shared member requires an object reference.' I'm not able to create a object of the request and response classes.
Need help.

Hi,
Please check on this blog:
/people/sap.user72/blog/2005/10/21/xi-the-underlying-connection-was-closed-an-unexpected-error-occurred-on-a-send

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In red : modified
In blue : added
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import java.net.URL;
import org.apache.soap.Constants;
import org.apache.soap.Fault;
import org.apache.soap.SOAPException;
import org.apache.soap.rpc.Call;
import org.apache.soap.rpc.Parameter;
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XMLElement e = (XMLElement) a.ricercaPF("102030","102030","CMRGPP69M29D761K");
e.print(System.out);
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ex.printStackTrace();
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Used a XI web service in dot net, but cannot access the message types .

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