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POWCF: Interfaces, Generics and ServiceKnownType
 

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    <p>I have the following:</p> <pre><code>[ServiceContract] [ServiceKnownType(typeof(ActionParameters))] [ServiceKnownType(typeof(SportProgram))] [ServiceKnownType(typeof(ActionResult&lt;SportProgram&gt;))] public interface ISportProgramBl { [OperationContract] IActionResult&lt;ISportProgram&gt; Get(IActionParameters parameters); } </code></pre> <p>When I run the Get method I get the following error:</p> <blockquote> <p>There was an error while trying to serialize parameter <a href="http://tempuri.org/:GetResult" rel="noreferrer">http://tempuri.org/:GetResult</a>. The InnerException message was 'Type 'PPS.Core.DomainModel.Support.Action.ActionResult`1[ [PPS.Core.DomainModel.SportProgram.ISportProgram, PPS.Core.DomainModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]' with data contract name 'ActionResultOfanyType: <a href="http://schemas.datacontract.org/2004/07/PPS.Core.DomainModel.Support.Action" rel="noreferrer">http://schemas.datacontract.org/2004/07/PPS.Core.DomainModel.Support.Action</a>' is not expected. Add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer.'. Please see InnerException for more details.</p> </blockquote> <p>From this error I can see that it can resolve ActionResult but it can't resolve ISportProgram even though I have <strong>ServiceKnownType(typeof(ActionResult &lt; SportProgram >))</strong> on my service interface...</p> <p>Note this is the Reference stub that is generated looks like this, so I can see that the known types are being brought across correctly:</p> <pre><code>[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")] [System.ServiceModel.ServiceContractAttribute(ConfigurationName="SportProgramStb.ISportProgramBl")] public interface ISportProgramBl { [System.ServiceModel.OperationContractAttribute(Action="http://tempuri.org/ISportProgramBl/Get", ReplyAction="http://tempuri.org/ISportProgramBl/GetResponse")] [System.ServiceModel.ServiceKnownTypeAttribute(typeof(PPS.Core.DomainModel.SportProgram.SportProgram))] [System.ServiceModel.ServiceKnownTypeAttribute(typeof(PPS.Core.DomainModel.Support.Action.ActionParameters))] [System.ServiceModel.ServiceKnownTypeAttribute(typeof(PPS.Core.DomainModel.Support.Action.ActionResult&lt;PPS.Core.DomainModel.SportProgram.SportProgram&gt;))] object Get(object parameters); } </code></pre> <p>Why is this going wrong???? Note its getting through the WCF service correctly... but it throws the exception when the result is returned. </p> <p>Lastly ActionResult looks like this:</p> <pre><code>public interface IActionResult&lt;T&gt; { T Result { get; set; } } </code></pre> <p>Cheers Anthony </p>
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