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POComplex data types in WCF?
 

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  1. POComplex data types in WCF?
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    <p>I've run into a problem trying to return an object that holds a collection of childobjects that again can hold a collection of grandchild objects. I get an error, 'connection forcibly closed by host'.</p> <p>Is there any way to make this work? I currently have a structure resembling this:</p> <p>pseudo code:</p> <pre><code>Person: IEnumerable&lt;Order&gt; Order: IEnumerable&lt;OrderLine&gt; </code></pre> <p>All three objects have the DataContract attribute and all public properties i want exposed (including the IEnumerable's) have the DataMember attribute.</p> <p>I have multiple OperationContract's on my service and all the methods returning a single object OR an IEnumerable of an object works perfectly. It's only when i try to nest IEnumerable that it turns bad. Also in my client service reference i picked the generic list as my collection type. I just want to emphasize, <strong>only one of my operations/methods fail with this error - the rest of them work perfectly</strong>.</p> <p>EDIT (more detailed error description):</p> <pre><code>[SocketException (0x2746): An existing connection was forcibly closed by the remote host] [IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.] [WebException: The underlying connection was closed: An unexpected error occurred on a receive.] [CommunicationException: An error occurred while receiving the HTTP response to http://myservice.mydomain.dk/MyService.svc. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details.] </code></pre> <p>I tried looking for logs but i can't find any... also i'm using a WSHttpBinding and an http endpoint.</p>
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    1. USDan Atkinson
    1. USPer Hornshøj-Schierbeck
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      1. USBryan Rehbein
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      1. USsmoothdeveloper
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    1. COIs there something in your objects that is not serializing correctly?
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      1. USJeff Schumacher
    2. COI don't know. I was thinking perhaps a nested IEnumberable<T> might not get serialized? But how do i find out? I can debug all the way to the return of the actual OperationContract and everything is fine, but the transport seems to go wrong. I have no Serialize attribute but instead use [DataMember]
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      1. USPer Hornshøj-Schierbeck
    3. COi'm facing the same error as you.. my classes are also defined with enum properties, but i am not seeing this as an issue anywhere.. enums should be fine.. and what do you mean by setting default value? they're value types so they always have a default value. i will try removing enum properties and see if that fixes it.. here is some info on supported data contract classes http://msdn.microsoft.com/en-us/library/ms731923.aspx
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