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PO.NET WCF serialization issues
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  1. PO.NET WCF serialization issues
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    copied!<p>The situation: system A is supposed to expose SOAP 1.2 web service for system B to call. In order for A to know what the message looks like, B sent an XSD to A describing the contents of the message. A generated the stubs using the .NET xsd.exe tool, created the simple webservice around this and the job was done.</p> <p>However; when B calls this webservice, A refuses to serialize the SOAP/XML content to the generated proxy class instances. I realize this must be down to the way the serialization is defined on the webservice side on system A, but have been unable to locate exactly what is going wrong.</p> <p><strong>What the message from B looks like (anonymized) - FAILS:</strong></p> <pre><code>&lt;ns2:Set_Out xmlns:ns2="http://a.a/1.0" xmlns:ns1="http://b.b/1.0" xmlns:ns0="http://c.c"&gt; &lt;Context xmlns=""&gt; &lt;Foo&gt;test&lt;/Foo&gt; &lt;Bar&gt;test&lt;/Bar&gt; ... &lt;/Context&gt; </code></pre> <p><strong>What a test message from a test client (based on the WSDL) looks like - WORKS:</strong></p> <pre><code>&lt;Set_Out xmlns="http://a.a/1.0"&gt; &lt;Context xmlns:b="http://schemas.datacontract.org/2004/07/x.x" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"&gt; &lt;b:Foo&gt;TEST&lt;/b:Foo&gt; &lt;b:Bar&gt;test&lt;/b:Bar&gt; ... &lt;/Context&gt; </code></pre> <p>When the webservice built by A receives the messages from B, it doesn't serialize the message at all. The objects of the proxy (for instance <code>Context</code>) are <code>null</code>. When it receives the messages from a test client, everything is generated correctly.</p> <p><strong>The serialization attributes on the proxy:</strong></p> <pre><code>[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")] [System.SerializableAttribute()] [System.Diagnostics.DebuggerStepThroughAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true, Namespace="http://a.a/1.0")] [System.Xml.Serialization.XmlRootAttribute(Namespace="http://a.a/1.0", IsNullable=false)] [System.ServiceModel.MessageContract] public partial class Set_Out { [System.Xml.Serialization.XmlElementAttribute(Namespace="http://a.a/1.0", Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] [System.ServiceModel.MessageBodyMember(Order=0)] public ContextType Context; ... [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")] [System.SerializableAttribute()] [System.Diagnostics.DebuggerStepThroughAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] [System.Xml.Serialization.XmlTypeAttribute(Namespace="http://a.a/1.0")] public partial class ContextType { [System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] public string Foo; </code></pre> <p>Things I find odd:</p> <ol> <li>When generating the WSDL for this service, the WSDL adds its own namespaces to the WSDL definition (<code>xmlns:b</code> in the example above, for instance).</li> <li>The WSDL doesn't respect the <code>unqualified</code> annotations defined in the proxy, and makes everything qualified.</li> </ol> <p>I've tried various combinations of annotations, but nothing seems to help; the messages from B aren't correctly deserialized to the proxies generated by A. Any ideas/pointers/help would be much appreciated!</p>
 

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