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POHow to return Faults in JSON from AJAX Enabled WCF Service?
 

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  1. POHow to return Faults in JSON from AJAX Enabled WCF Service?
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    <p>I have an <strong>AJAX-enabled WCF service</strong> (with enableWebScript in the behavior) that has a ValidationFault which I created.</p> <p>Here's the service:</p> <pre><code>[ServiceContract] public interface ICoreWCF { /// &lt;summary&gt; /// Saves the Customer. /// &lt;/summary&gt; [OperationContract] [WebInvoke(BodyStyle = WebMessageBodyStyle.WrappedRequest)] [FaultContract(typeof(ValidationFault))] void Customer_Save(Customer customer); } </code></pre> <p>Here's the fault:</p> <pre><code>[DataContract] public class ValidationFault { [DataMember(Name = "success")] public bool Success { get; set; } [DataMember(Name = "msg")] public string ValidationMessage { get; set; } [DataMember(Name = "errors")] public Dictionary&lt;string, string&gt; Errors { get; set; } } </code></pre> <p>I would like to send this fault back to the client javascript. The problem is that my custom fault's DataMembers are ignored and a general exception is returned.</p> <p><strong>How can I send the errors collection to the client?</strong></p> <p>I already tried writing my own <a href="http://msdn.microsoft.com/en-us/library/system.servicemodel.dispatcher.ierrorhandler.aspx" rel="nofollow">IErrorHandler</a> similar to <a href="http://timclem.wordpress.com/2009/10/07/exception-shielding-for-json-wcf-services/" rel="nofollow">this</a>, such that it uses Exception Handling Application Block to convert an exception to a fault, and then the IErrorHandler serializes the resulting fault. But it appears that the JsonErrorHandler of the WebScriptingEnablingBehavior is not dealing well with the resulting Message object.</p> <p>Thanks.</p>
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    1. USDor Rotman
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    1. COTake a look [here][1] its been answered already. [1]: http://stackoverflow.com/questions/1272877/returning-error-details-from-ajax-enabled-wcf-service
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      1. POHow to return Faults in JSON from AJAX Enabled WCF Service?
      1. USBryan Corazza
    2. COThanks @Bryan. I saw this question, but unfortunately I am experiencing the same problem as described by this answer: http://stackoverflow.com/questions/1272877/returning-error-details-from-ajax-enabled-wcf-service/3705135#3705135
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      1. USDor Rotman
 

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