At least in beta 1, Fault Exception is not supported in Silverlight. I don't think beta2 changed that but I could be wrong.
Here is the way I do it:
I created a custom exception in my WCF side. I have one generic WCF function for my all WCF calls. The return type is called ResponseData I defined this way:
[DataContract]
public class ResponseData
{
[DataMember]
public string StringResult { get; set; }
[DataMember]
public int IntResult { get; set; }
[DataMember]
public double NumericResult { get; set; }
[DataMember]
public bool BooleanResult { get; set; }
[DataMember]
public CustomException Error { get; set; }
[DataMember]
public DataSetData DataSetResult { get; set; }
[DataMember]
public Dictionary<string, string> DictionaryResult { get; set; }
}
[DataContract]
public class CustomException
{
[DataMember(Order = 0)]
public string Message { get; set; }
[DataMember(Order = 1)]
public CustomException InnerException;
public Exception ToException()
{
Exception e;
CustomException ce = this;
if (ce.InnerException != null)
{
Exception inner = ce.InnerException.ToException();
e = new Exception(ce.Message, inner);
}
else
e = new Exception(ce.Message);
return e;
}
}
So if my WCF function I catch any exception and pass that exception to MyResponseData.Error;
[OperationContract]
public ResponseData ProcessRequest(RequestData request)
{
return Process(request);
}
private ResponseData Process(RequestData request)
{
ResponseData result = new ResponseData();
try
{
...
result.StringResult = "Something"; //
}
catch (Exception ex)
{
while (ex.InnerException != null)
ex = ex.InnerException;
result.Error = new CustomException();
result.Error.Message = ex.Message + ex.StackTrace;
}
return result; // this result could contains Error or could contain real data.
}
On Silverlight side in MyWebServiveCompleted call I check both e.Error and e.Result.Error
Hope this would help if somebody want to do this way. Use this CustomExeption I can also send my Exception in the Silverlight side back to Server to do Exception logging.
sladapter
Software Engineer
Aprimo, Inc
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