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POApply KnownTypeAttribute to Object type?
 

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    <p>I'm attempting to use the WeatherBug API (WSDL is <a href="http://api.wxbug.net/weatherservice.asmx?WSDL" rel="nofollow">here</a>). I'm attempting to learn some things about WCF.</p> <p>I used svcutil.exe to create the classes from the WSDL from the link above.</p> <p>I then tried to execute the following code to test it:</p> <pre><code>var proxy = new WeatherBugWebServicesSoapClient(); var stations = proxy.GetStationListByUSZipCode("97211", UnitType.English, "myapikey"); </code></pre> <p>I end up getting a <code>NetDispatcherFaultException</code>:</p> <blockquote> <p>The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter <a href="http://api.wxbug.net/:GetStationListByUSZipCodeResponse" rel="nofollow">http://api.wxbug.net/:GetStationListByUSZipCodeResponse</a>. The InnerException message was 'Error in line 1 position 352. Element '<a href="http://api.wxbug.net/:anyType" rel="nofollow">http://api.wxbug.net/:anyType</a>' contains data from a type that maps to the name '<a href="http://api.wxbug.net/:ApiStationData" rel="nofollow">http://api.wxbug.net/:ApiStationData</a>'. The deserializer has no knowledge of any type that maps to this name. Consider using a DataContractResolver or add the type corresponding to 'ApiStationData' to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding it to the list of known types passed to DataContractSerializer.'. Please see InnerException for more details.</p> </blockquote> <p>It appears that I should be getting back an object of type <code>ArrayOfAnyType</code> that is declared like this (generated by svcutil.exe):</p> <pre><code>[System.Diagnostics.DebuggerStepThroughAttribute()] [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")] [System.Runtime.Serialization.CollectionDataContractAttribute(Name = "ArrayOfAnyType", Namespace = "http://api.wxbug.net/", ItemName = "anyType")] public class ArrayOfAnyType : System.Collections.Generic.List&lt;object&gt; { } </code></pre> <p>The array looks like it should be a collection of <code>ApiStationData</code>, which is declared like this:</p> <pre><code>[System.Diagnostics.DebuggerStepThroughAttribute()] [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")] [System.Runtime.Serialization.DataContractAttribute(Name = "ApiStationData", Namespace = "http://api.wxbug.net/")] public partial class ApiStationData : object, System.Runtime.Serialization.IExtensibleDataObject { </code></pre> <p>From what I've read on various web pages, I <em>think</em> I need to add a <code>KnownTypeAttribute</code> to the <code>Object</code> class, since the <code>ArrayOfAnyType</code> is a <code>List&lt;object&gt;</code>. I don't think that's possible, though (or correct)...</p> <p>It's also odd that the exception mentions <code>http://api.wxbug.net/:anyType</code>, but there isn't a definition for <code>anyType</code> in the svcutil generated code (which is why I'm making the assumption about the <code>ArrayOfAnyType</code>).</p> <p>Any suggestions on how to solve this issue?</p>
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