CODEWITHSUNDEEP
c#-4.0log4net
Casper_2211
Casper_2211

Reputation: 1091

Attaching appenders to classes in config file in Log4net

I managed to get started with Log4net but all my classes are using the same appender. I want some classes to use a special appender.

Following is my log file:

<appender name="InfoRollingLogFileAppender" type="log4net.Appender.RollingFileAppender,log4net">
  <param name="File" value="C:\Test.log"/>
  <param name="RollingStyle" value="Date"/>
  <param name="DatePattern" value="_yyyy-MM-dd.log"/>
  <param name="StaticLogFileName" value="true"/>
  <maximumFileSize value="100KB" />
  <appendToFile value="true" />
  <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%newline ---------------START---------------------- %newline %date - %message %newline ----------------END--------------------- %newline" />
  </layout>
  <filter type="log4net.Filter.LevelRangeFilter">
    <levelMin value="DEBUG" />
    <levelMax value="DEBUG" />
  </filter>
  <filter class="log4net.Filter.DenyAllFilter"/>
</appender>

<root>
  <level value="DEBUG" />
  <appender-ref ref="InfoRollingLogFileAppender" />
</root>

Here is how I am using it in my code:

private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

and then to log I use log.Debug("Goes in Log File").

My question is how can I have different appenders for specific classes?

Upvotes: 2

Views: 1562

Answers (1)

Stefan Egli
Stefan Egli

Reputation: 17018

You can define appenders per logger which in your case translates to "per class":

<root>
   <level value="DEBUG" />
   <appender-ref ref="InfoRollingLogFileAppender" />
</root>
<logger name="YourNameSpace.YourClass" additivity="false">
   <level value="DEBUG" />
   <appender-ref ref="YourOtherAppender" />
</logger>

Important is the additivity flag: Without it the appenders defined in the root (or parent) logger are inherited.

Upvotes: 3

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