jQuery success callback called with empty response when WCF method throws an Exception

Question

I\'m tearing my hair out over this one, so bear with me (it\'s a long post).

Basic Info

• ASP.NET 3.5 with WCF service in ASP.NET compatibility mode

Answer 1

Here is another shot. I'll leave my original attempt incase that solution helps someone else.

To fire the error condidition for the $.ajax call you will need an error code in your response

   protected virtual void ApplyHttpResponseSettings(ref Message fault, System.Net.HttpStatusCode statusCode, string statusDescription) 
    { 
        var httpResponse = new HttpResponseMessageProperty() 
        { 
            //I Think this could be your problem, if this is not an error code
            //The error condition will not fire
            //StatusCode = statusCode, 
            //StatusDescription = statusDescription 

            //Try forcing an error code
            StatusCode = System.Net.HttpStatusCode.InternalServerError;
        }; 

        httpResponse.Headers[HttpResponseHeader.ContentType] = "application/json"; 
        httpResponse.Headers["jsonerror"] = "true"; 

        fault.Properties.Add(HttpResponseMessageProperty.Name, httpResponse); 
    } 

Heres hoping my second attmpt is more useful to you!