ExceptionPolicy logs differently to event log than to text log

I am implementing an exception policy in the business layer and in the presentation layer of my web application as per the block below.  When an exception happens in the business layer, it bubbles on up to the aspx, which in turn throws the error, thus invoking the default error page defined in web.config.  All well and good. 

The strangeness is that only one exception is logged to the event log, but both throws are caught in the text log.  Why the discrepancy?



        Catch ex As Exception
            Dim rethrow As Boolean
            rethrow = ExceptionPolicy.HandleException(ex, "ExceptionErrorLogPolicy")
            If rethrow Then
                Throw ex
            End If
        End Try


1      <loggingConfiguration name="Logging Application Block" tracingEnabled="true"
2        defaultCategory="General" logWarningsWhenNoCategoriesMatch="true">
3        <listeners>
4          <add fileName="OAWeb.log" header="----------------------------------------"
5            footer="----------------------------------------" formatter="TextLogFormatter"
6            listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FlatFileTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
7            traceOutputOptions="Callstack" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
8            name="FlatFile TraceListener" />
9          <add source="Enterprise Library Logging" formatter="Text Formatter"
10           log="Application" machineName="" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FormattedEventLogTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
11           traceOutputOptions="Callstack" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
12           name="Formatted EventLog TraceListener" />
13       </listeners>
14       <formatters>
15         <add template="Timestamp: {timestamp}
Message: {message}
Category: {category}
Priority: {priority}
EventId: {eventid}
Severity: {severity}
Machine: {machine}
Application Domain: {appDomain}
Process Id: {processId}
Process Name: {processName}
Win32 Thread Id: {win32ThreadId}
Thread Name: {threadName}
Extended Properties: {dictionary({key} - {value}
16           type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
17           name="Text Formatter" />
18         <add template="Timestamp: {timestamp}
Message: {message}
19           type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
20           name="TextLogFormatter" />
21       </formatters>
22       <categorySources>
23         <add switchValue="All" name="General">
24           <listeners>
25             <add name="FlatFile TraceListener" />
26             <add name="Formatted EventLog TraceListener" />
27           </listeners>
28         </add>
29       </categorySources>
30       <specialSources>
31         <allEvents switchValue="All" name="All Events" />
32         <notProcessed switchValue="All" name="Unprocessed Category" />
33         <errors switchValue="All" name="Logging Errors & Warnings">
34           <listeners>
35             <add name="FlatFile TraceListener" />
36             <add name="Formatted EventLog TraceListener" />
37           </listeners>
38         </errors>
39       </specialSources>
40     </loggingConfiguration>
41     <exceptionHandling>
42       <exceptionPolicies>
43         <add name="ExceptionErrorLogPolicy">
44           <exceptionTypes>
45             <add type="System.Exception, mscorlib, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089"
46               postHandlingAction="NotifyRethrow" name="Exception">
47               <exceptionHandlers>
48                 <add logCategory="General" eventId="100" severity="Error" title="Enterprise Library Exception Handling"
49                   formatterType="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.TextExceptionFormatter, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
50                   priority="0" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging.LoggingExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
51                   name="Logging Handler" />
52               </exceptionHandlers>
53             </add>
54           </exceptionTypes>
55         </add>
56       </exceptionPolicies>
57     </exceptionHandling>
11/21/2008 9:46:54 PM
asp.net.application-block 1007 articles. 0 followers. Follow

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