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/***************************<\/span><\/div> * Author : Phani Raj<\/span><\/div> * Blog : http://blogs.msdn.com/PhaniRaj<\/span><\/div> * * ************************/<\/span><\/div>using<\/span> System<\/span>;<\/span><\/div>using<\/span> System.Net<\/span>;<\/span><\/div>using<\/span> System.Windows<\/span>;<\/span><\/div>using<\/span> System.Windows.Controls<\/span>;<\/span><\/div>using<\/span> System.Windows.Documents<\/span>;<\/span><\/div>using<\/span> System.Windows.Ink<\/span>;<\/span><\/div>using<\/span> System.Windows.Input<\/span>;<\/span><\/div>using<\/span> System.Windows.Media<\/span>;<\/span><\/div>using<\/span> System.Windows.Media.Animation<\/span>;<\/span><\/div>using<\/span> System.Windows.Shapes<\/span>;<\/span><\/div>using<\/span> System.Xml.Linq<\/span>;<\/span><\/div>namespace<\/span> System.Data.Services.Exceptions<\/span><\/div>{<\/span><\/div>    /// <summary><\/span><\/div>    /// Exception type which represents the DataServiceException thrown by the ADO.NET Data Service<\/span><\/div>    /// </summary><\/span><\/div>    public<\/span> class<\/span> DataServiceException<\/span> :<\/span> Exception<\/span><\/div>    {<\/span><\/div>        public<\/span> DataServiceException<\/span>(<\/span>string<\/span> Message<\/span>,<\/span> string<\/span> StackTrace<\/span>,<\/span> Exception<\/span> InternalException<\/span>)<\/span><\/div>            :<\/span> base<\/span>(<\/span>Message<\/span>,<\/span> InternalException<\/span>)<\/span><\/div>        {<\/span><\/div>            _stackTrace<\/span> =<\/span> StackTrace<\/span>;<\/span><\/div>        }<\/span><\/div>        private<\/span> string<\/span> _stackTrace<\/span>;<\/span><\/div>        public<\/span> override<\/span> string<\/span> StackTrace<\/span><\/div>        {<\/span><\/div>            get<\/span><\/div>            {<\/span><\/div>                return<\/span> _stackTrace<\/span>;<\/span><\/div>            }<\/span><\/div>        }<\/span><\/div>    }<\/span><\/div>    /// <summary><\/span><\/div>    /// Helper class to de-serialize DataServiceExceptions thrown by an ADO.NET Data Service<\/span><\/div>    /// </summary><\/span><\/div>    public<\/span> static<\/span> class<\/span> DataServiceExceptionUtil<\/span><\/div>    {<\/span><\/div>        /// <summary><\/span><\/div>        /// Pass in the Exception recieved from an Execute / SaveChanges call <\/span><\/div>        /// to rethrow the actual DataServiceException thrown by the ADO.NET Data Service<\/span><\/div>        /// </summary><\/span><\/div>        /// <param name="dsRexception">The Exception thrown by the client library <\/span><\/div>        /// in response to an Execute/SaveChanges call</param><\/span><\/div>        public<\/span> static<\/span> void<\/span> Throw<\/span>(<\/span>Exception<\/span> dsRexception<\/span>)<\/span><\/div>        {<\/span><\/div>            Exception<\/span> baseException<\/span> =<\/span> dsRexception<\/span>.<\/span>GetBaseException<\/span>();<\/span><\/div>            XDocument<\/span> xDoc<\/span> =<\/span> XDocument<\/span>.<\/span>Parse<\/span>(<\/span>baseException<\/span>.<\/span>Message<\/span>);<\/span><\/div>            if<\/span> (<\/span>xDoc<\/span> !=<\/span> null<\/span>)<\/span><\/div>            {<\/span><\/div>                throw<\/span> ParseException<\/span>(<\/span>xDoc<\/span>.<\/span>Root<\/span>,<\/span> true<\/span>);<\/span><\/div>            }<\/span><\/div>        }<\/span><\/div> <\/div>        /// <summary><\/span><\/div>        /// Parses the Exception object to determine if it contains a DataServiceException <\/span><\/div>        /// and de-serializes the Exception message into a DataServiceException.<\/span><\/div>        /// </summary><\/span><\/div>        /// <param name="dsRexception">The Exception thrown by the client library <\/span><\/div>        /// in response to an Execute/SaveChanges call </param><\/span><\/div>        /// <param name="dataServiceException">The DataServiceException thrown by the ADO.NET Data Service</param><\/span><\/div>        /// <returns>true if we are able to parse the response into a DataServiceException,false if not</returns><\/span><\/div>        public<\/span> static<\/span> bool<\/span> TryParse<\/span>(<\/span>Exception<\/span> dsRexception<\/span>,<\/span><\/div>            out<\/span> Exception<\/span> dataServiceException<\/span>)<\/span><\/div>        {<\/span><\/div>            bool<\/span> parseSucceeded<\/span> =<\/span> false<\/span>;<\/span><\/div>            try<\/span><\/div>            {<\/span><\/div>                Exception<\/span> baseException<\/span> =<\/span> dsRexception<\/span>.<\/span>GetBaseException<\/span>();<\/span><\/div>                XDocument<\/span> xDoc<\/span> =<\/span> XDocument<\/span>.<\/span>Parse<\/span>(<\/span>baseException<\/span>.<\/span>Message<\/span>);<\/span><\/div>                dataServiceException<\/span> =<\/span> ParseException<\/span>(<\/span>xDoc<\/span>.<\/span>Root<\/span>,<\/span> false<\/span>);<\/span><\/div>                parseSucceeded<\/span> =<\/span> dataServiceException<\/span> !=<\/span> null<\/span>;<\/span><\/div>            }<\/span><\/div>            catch<\/span><\/div>            {<\/span><\/div>                dataServiceException<\/span> =<\/span> dsRexception<\/span>;<\/span><\/div>                parseSucceeded<\/span> =<\/span> false<\/span>;<\/span><\/div>            }<\/span><\/div>            return<\/span> parseSucceeded<\/span>;<\/span><\/div>        }<\/span><\/div> <\/div>        #region Variables<\/span><\/div>        static<\/span> readonly<\/span> string<\/span> DataServicesMetadataNamespace<\/span> =<\/span> "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"<\/span>;<\/span><\/div>        static<\/span> XName<\/span> xnCode<\/span> =<\/span> XName<\/span>.<\/span>Get<\/span>(<\/span>"code"<\/span>,<\/span> DataServicesMetadataNamespace<\/span>);<\/span><\/div>        static<\/span> XName<\/span> xnType<\/span> =<\/span> XName<\/span>.<\/span>Get<\/span>(<\/span>"type"<\/span>,<\/span> DataServicesMetadataNamespace<\/span>);<\/span><\/div>        static<\/span> XName<\/span> xnMessage<\/span> =<\/span> XName<\/span>.<\/span>Get<\/span>(<\/span>"message"<\/span>,<\/span> DataServicesMetadataNamespace<\/span>);<\/span><\/div>        static<\/span> XName<\/span> xnStackTrace<\/span> =<\/span> XName<\/span>.<\/span>Get<\/span>(<\/span>"stacktrace"<\/span>,<\/span> DataServicesMetadataNamespace<\/span>);<\/span><\/div>        static<\/span> XName<\/span> xnInternalException<\/span> =<\/span> XName<\/span>.<\/span>Get<\/span>(<\/span>"internalexception"<\/span>,<\/span> DataServicesMetadataNamespace<\/span>);<\/span><\/div>        static<\/span> XName<\/span> xnInnerError<\/span> =<\/span> XName<\/span>.<\/span>Get<\/span>(<\/span>"innererror"<\/span>,<\/span> DataServicesMetadataNamespace<\/span>);<\/span><\/div>        #endregion<\/span><\/div> <\/div>        private<\/span> static<\/span> DataServiceException<\/span> ParseException<\/span>(<\/span>XElement<\/span> errorElement<\/span>,<\/span><\/div>            bool<\/span> throwOnFailure<\/span>)<\/span><\/div>        {<\/span><\/div>            switch<\/span> (<\/span>errorElement<\/span>.<\/span>Name<\/span>.<\/span>LocalName<\/span>)<\/span><\/div>            {<\/span><\/div>                case<\/span> "error"<\/span>:<\/span><\/div>                case<\/span> "innererror"<\/span>:<\/span><\/div>                    DataServiceException<\/span> internalException<\/span> =<\/span><\/div>                                errorElement<\/span>.<\/span>Element<\/span>(<\/span>xnInnerError<\/span>)<\/span> !=<\/span> null<\/span> ?<\/span><\/div>                                            ParseException<\/span>(<\/span>errorElement<\/span>.<\/span>Element<\/span>(<\/span>xnInnerError<\/span>),<\/span> throwOnFailure<\/span>)<\/span> :<\/span> null<\/span>;<\/span><\/div>                    string<\/span> message<\/span> =<\/span> errorElement<\/span>.<\/span>Element<\/span>(<\/span>xnMessage<\/span>)<\/span> !=<\/span> null<\/span> ?<\/span><\/div>                                            errorElement<\/span>.<\/span>Element<\/span>(<\/span>xnMessage<\/span>).<\/span>Value<\/span>.<\/span>ToString<\/span>()<\/span> :<\/span> String<\/span>.<\/span>Empty<\/span>;<\/span><\/div>                    string<\/span> stackTrace<\/span> =<\/span> errorElement<\/span>.<\/span>Element<\/span>(<\/span>xnStackTrace<\/span>)<\/span> !=<\/span> null<\/span> ?<\/span><\/div>                                            errorElement<\/span>.<\/span>Element<\/span>(<\/span>xnStackTrace<\/span>).<\/span>Value<\/span>.<\/span>ToString<\/span>()<\/span> :<\/span> String<\/span>.<\/span>Empty<\/span>;<\/span><\/div>                    return<\/span> new<\/span> DataServiceException<\/span>(<\/span><\/div>                        message<\/span>,<\/span><\/div>                        stackTrace<\/span>,<\/span><\/div>                        internalException<\/span><\/div>                        );<\/span><\/div> <\/div>                default<\/span>:<\/span><\/div>                    if<\/span> (<\/span>throwOnFailure<\/span>)<\/span><\/div>                    {<\/span><\/div>                        throw<\/span> new<\/span> InvalidOperationException<\/span>(<\/span>"Could not parse Exception"<\/span>);<\/span><\/div>                    }<\/span><\/div>                    else<\/span><\/div>                    {<\/span><\/div>                        return<\/span> null<\/span>;<\/span><\/div>                    }<\/span><\/div>            }<\/span><\/div>        }<\/span><\/div>    }<\/span><\/div>}<\/span><\/div><\/pre><\/div>\n          \n        <\/div>\n\n        \n          view raw<\/a>\n          DataServiceExceptionUtil.cs<\/a>\n          This Gist<\/a> brought to you by GitHub<\/a>.\n        <\/div>\n      <\/div>\n    \n  \n<\/div>\n')