[Mono-devel-list] SoapHttpClientProtocol::Invoke returns XmlNode instead of system type

[Lluis Sanchez]

On dt, 2004-09-14 at 11:26 +0200, Yannick Jost wrote:
> Hi,
> 
> I noticed a strange behaviour of my mono proxy when trying to use a
> gSOAP-generated WebService with Mono.
> It is similar to bug #49729
> (http://bugzilla.ximian.com/show_bug.cgi?id=49729). But I think this one
> has been fixed in the release I'm using (Mono 1.0.1).

This may be a different issue. Can you please file a bug report? Please
include the wsdl document. Also, if the service is available online it
would be of great help.

Thanks!
Lluis.

> Here is a short example with a service doing an addition.
> 
> The problem is that the proxy generated by wsdl throws an
> InvalidCastException when trying to cast the result from the webservice to
> a double.
> 
> Unhandled Exception: System.InvalidCastException: Cannot cast from source
> type to destination type.
> in <0x000e0> Calculator:add (double,double)
> in <0x000ad> Calc:Main ()
> 
> In the proxy, this line calls the service :
> 
> System.Object[] results = this.Invoke("add", new object[] {a,b});
> 
> But the following line prints "System.Double" under VS.NET and
> "System.Xml.XmlNode[]" under mono
> 
> System.Console.WriteLine("{0}",results[0].GetType());
> 
> Thus, this line is throwing the exception under mono and returns the good  
> result
> with VS.NET :
> 
> return ((double)(results[0]));
> 
> Here is a sample response from the server :
> 
> <?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope
> xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
> xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema"
> xmlns:ns="urn:calc"><SOAP-ENV:Body
> SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
> id="_0"><ns:addResponse><result>30</result></ns:addResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>
> 
> Is this a bug or the bug #49729 again ? Am I wrong somewhere ? Or should I  
> try to modify gSOAP's answer ?
> 
> Thanks,
> 
> Yannick
> 
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