Using multiple log4net file loggers - log4net

Question

I have file appenders FileA, FileB, and FileC. FileA I add to the root element as I want it to be a catch all, (more on this below). FileB and FileC I use for specific messages and create named loggers for each of those appenders. In code, I load the log I'm using for most messages like so:
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
The other loggers, I load like this
private static readonly log4net.ILog commandLog = log4net.LogManager.GetLogger("LoggerFileB");
What's happening is I'm getting what I expect in LoggerFileB, ie, ONLY the special messages. The problem is these messages also showing up in LoggerFileA, my catch-all I added to root. I could create a specific named instance for the catch-all, instead of adding it to the root element, but I want the calling type as the logger name in the output. Creating a named logger means that %logger outputs the name of the log instead of the type. Is there a way to get precisely what I want (the catchall to show the logger name as the type, but not show messages logged to other named loggers)? Hopefully I'm missing something and there is a simple solution.
Here's an example of what my log.config looks like for this situation.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<log4net>
<appender name="FileA" type="log4net.Appender.RollingFileAppender">
<file value="FileA.txt" />
...snip...
</appender>
<appender name="FileB" type="log4net.Appender.RollingFileAppender">
<file value="FileB.txt" />
...snip...
</appender>
<appender name="FileC" type="log4net.Appender.RollingFileAppender">
<file value="FileC.txt" />
...snip...
</appender>
<root>
<level value="ALL" />
<appender-ref ref="LoggerFileA" />
</root>
<logger name="LoggerFileB">
<level value="ALL" />
<appender-ref ref="FileB" />
</logger>
<logger name="LoggerFileC">
<level value="ALL" />
<appender-ref ref="FileC" />
</logger>
</log4net>
</configuration>

Answer 1

You can use set the additivity to false:
<logger name="LoggerFileB" additivity="false">