Enterprise Library exception handling and event log issue

[justTryingToCode]

Hi all experts,

I am currently using the Microsoft.Practices.EnterpriseLibrary.ExceptionHandling along with the logging component within a web application.

All was working great, catastrophic errors were logging to the Application event log using the web.config listeners. I decided that I wanted to try giving each new app its own event log. While building a template web.config file I reference Log="Custom Application". Now when I try and change my original applications event log destination it will not write to this event log.I switch it back to "Application" it logs again. here is the web.config entry:

<add source="Gateway Error Logging" formatter="Text Formatter"
log="Application" machineName="" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FormattedEventLogTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=3.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
traceOutputOptions="None" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=3.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
name="EventLog_Errors" />

I used this same code for another web app which does log to "Custom Application" using the same code, but if I change it to try and log to "Application" it does not. I have reset IIS, restarted my server and made sure ASP.NET permissions exist

Has anyone else had this issue, I have been pulling my hair out trying to figure this out.

Thanks in advance...

 

[justTryingToCode]

I finally figured it out:

<EventLogFile> name and Source need to be unique.

And if you are going to create a new log file make sure your name is not a reserve word.. I found out that Gateway was a reserved word.

 

[stsuing]

You might try and make a test page that just does the log, so you can see the error message. How did you set up the log. Typically I'd create a simple console installation program as the rights of a running asp.net process never seem enough to create initiate the error log.


private const string _logName = "logname";
private const string _logSource = "sourcename";
internal const string regKey = @"SYSTEM\CurrentControlSet\Services\Eventlog\logname";

public static bool InitializeLog()
{
bool status=false;

if (!EventLog.SourceExists(_logSource))
{
EventLog.CreateEventSource(_logSource, _logName);

status = true;
}
else
{

status = false;
}

// HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\logname
// "(A;;0x0002;;;DU)"
RegistryKey regkey = Registry.LocalMachine.OpenSubKey(regKey, true);
string customSd = (string)regkey.GetValue("CustomSD");
if (!customSd.Contains("(A;;0x0002;;;DU)"))
{
customSd += "(A;;0x0002;;;DU)";
regkey.SetValue("CustomSD", customSd);
Registry.LocalMachine.Flush();
}

return status;
}