Log4Net – How to add a 2nd logger used only for specific sections of code

You can easily create a special logger like this:

ILog specialLogger = LogManager.GetLogger("SpecialLogger");

You can then configure the system to use a dedicated appender for this logger:

<logger name="SpecialLogger" additivity="false">
   <level value="ALL" />
   <appender-ref ref="SpecialLogFileAppender" />
</logger>
<root>
   <level value="ALL" />
   <appender-ref ref="LogFileAppender" />
</root>