Log4Net - Logging out the Exception stacktrace only for certain files

Question

I currently have multiple log files in my application using log4net.

I have a top level log file which contains every type of message. I also have an error log file

Answer 1

From your configuration, it looks like your stack trace was included as part of your message parameter.

EDIT -- I should have been clearer. My guess is that when you called log4net's logging methods, your first parameter (which is message) contained the stack trace, but that's just a guess. It's also the only parameter in both of your appenders. If you don't have a parameter in your appender format, it shouldn't appear in both logs... unless of course your appender with the exception is the primary appender.

Try this instead and see what happens:

<!-- Loggers -->
<root>
  <appender-ref ref="GeneralTextLog"/>
  <level value="ALL"/>
</root>

<logger name="ErrorLogger">
  <appender-ref ref="ErrorTextLog"/>
  <levelMin value="WARN"/>
  <levelMax value="FATAL"/>
</logger>

Answer 2

Configure the layout like this (GeneralTextLog Appender):

<layout type="log4net.Layout.PatternLayout">
    <IgnoresException value="False" />
    ...

Setting IgnoresException to false tells the appender that the layout will take care of the exception. Thus you can choose not to print the stack trace.