Does anybody know how I can troubleshoot web services responses? When I get my soap message back from a web service call I get this error "The string '' is not a valid AllXsd value" as soon as it's a value type like a datetime per example.
My proxy classes are generated from wsdl's using wsdl.exe, the wsdl seems valid. I have seen nothing wrong in the proxy classes (specified values are generated, datetime is nullable).
I have tried netmon to see the soap envelopes on the wire but everything seems normal.
Can you think of other ways to troubleshoot this? or maybe a clue about what is going on here?
Ok I found out what the problem was.
There is 2 ways for an element to be null in SOAP:
Either with the entire element missing Or with the argument xsi:nil="true" and no value
They fixed it by modifying their message with the first option. Since then I'm able to deserialize without problems.
Thank you for your answers.