re: ADO.NET Data Services : Efficient Error Handling across Application Tiers

crokusek2 — Thu, 26 May 2011 18:56:13 GMT

Thanks for the util class! To get at the internalexception which may even more information (if not the best info):

Can add a member...

public Exception InternalException;

...an additional constructor...

public DataServiceException(string Message, string StackTrace, Exception innerException, Exception InternalException)

: base(Message, InternalException)

{

this.InternalException = InternalException;

_stackTrace = StackTrace;

}

...and modify the switch block...

case "error":

case "innererror":

case "internalexception": // crokusek added

DataServiceException innerEx = null;

Exception internalEx = null;

if (errorElement.Element(xnInnerError) != null)

{

innerEx = ParseException(errorElement.Element(xnInnerError), throwOnFailure);

var e = errorElement.Element(xnInnerError).Element(xnInternalException);

if (e != null)

internalEx = ParseException(errorElement.Element(xnInnerError).Element(xnInternalException), throwOnFailure);

}

string message = errorElement.Element(xnMessage) != null ?

errorElement.Element(xnMessage).Value.ToString() : String.Empty;

string stackTrace = errorElement.Element(xnStackTrace) != null ?

errorElement.Element(xnStackTrace).Value.ToString() : String.Empty;

return new DataServiceException(

message,

stackTrace,

innerEx,

internalEx

);

still kind of a pain to decode though:

Exception dsex_;

DataServiceExceptionUtil.TryParse(ex, out dsex_);

if (dsex_ != null && dsex_ is DataServiceException)

{

DataServiceException dsex = (DataServiceException) dsex_;

// The best info is here extracted from Xml

Exception iex = dsex.InternalException;

if (iex != null)

_sb.AppendLine('\n' + iex.Message + '\n' + iex.StackTrace + "\n\n");

if (dsex.InnerException != null)

_sb.AppendLine('\n' + dsex.InnerException.Message + '\n' + dsex.InnerException.StackTrace + "\n\n");

_sb.AppendLine('\n' + dsex.Message + '\n' + dsex.StackTrace + "\n\n");

re: ADO.NET Data Services : Efficient Error Handling across Application Tiers

Aquilax — Wed, 16 Dec 2009 15:15:22 GMT

I had a problem with the namespaces, the innererror is in the xmlns namespace, so I changed your code as follow:

[Phani : Aquilax , thanks for catching that, I'll update the Gist in Github]