SvcUtil creates incorrect namespace in the proxy

Question

I create the WCF proxy with the cmd:
svcutil.exe /wrapped /serializer:XmlSerializer GenericTicketConnector.wsdl /o:OTRS.cs /config:App.Config /n:*,OTRSClient.OTRSServiceReference
Contract GenericTicketConnector.wsdl you can see here:
https://raw.githubusercontent.com/OTRS/otrs/rel-3_3/development/webservices/GenericTicketConnector.wsdl
My WCF client code:
using (OTRSClient.OTRSServiceReference.GenericTicketConnector_InterfaceClient tst = new OTRSClient.OTRSServiceReference.GenericTicketConnector_InterfaceClient("GenericTicketConnector_endPoint"))
OTRSClient.OTRSServiceReference.OTRS_SessionCreate sc = new OTRSClient.OTRSServiceReference.OTRS_SessionCreate();
sc.ItemElementName = OTRSClient.OTRSServiceReference.ItemChoiceType8.UserLogin;
sc.Item = "soap";
sc.Password = "1234567";
OTRSClient.OTRSServiceReference.OTRS_SessionCreateResponse res = tst.SessionCreate(sc);
File.WriteAllText("SessionID.txt", res.SessionID);
SvcUtil created this proxy:
[System.ServiceModel.MessageBodyMemberAttribute(Name="SessionCreateResponse", Namespace="", Order=0)]
public OTRSClient.OTRSServiceReference.OTRS_SessionCreateResponse SessionCreateResponse1;
But response from server looks like this:
<soap:Envelope soap:encodingStyle="http://www.w3.org/2003/05/soap-encoding" xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:soapenc="http://www.w3.org/2003/05/soap-encoding" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<s:Header xmlns:s="http://www.w3.org/2003/05/soap-envelope"></s:Header>
<soap:Body>
<SessionCreateResponse xmlns="http://www.otrs.org/TicketConnector/">
<SessionID>r3oRuOPBXiYtOZCCKIL5ZNSCDCKS7lAt</SessionID>
</SessionCreateResponse>
</soap:Body>
</soap:Envelope>
Response in my WCF client's code was null.
I manually corrected the proxy like this:
[System.ServiceModel.MessageBodyMemberAttribute(Name="SessionCreateResponse", Namespace="http://www.otrs.org/TicketConnector/", Order=0)]
public OTRSClient.OTRSServiceReference.OTRS_SessionCreateResponse SessionCreateResponse1;
And the answer began to contain the required data (response is not null).
How to fix the parameters of the command line SvcUtil call? Or I must fix the WSDL file?
I need to make a proxy automatically with the correct namespace.

Answer 1

Hi Andrey Antipov,
Based on your description, it seems that you are using the XmlSerializer, please try to use the
DataContractSerializer to see if it can work.
Besides, please also try to use the "Add Servicexs Reference"  to see if it can make a proxy automatically with the correct namespace.
Best Regards,
Amy Peng
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