examples/Extensibility/TraceLogApp/App.config

<configuration>
  <!-- Register a section handler for the log4net section -->
  <configSections>
    <section name="log4net" type="System.Configuration.IgnoreSectionHandler" />
  </configSections>
  <!-- This section contains the log4net configuration settings -->
  <log4net debug="false" threshold="TRACE">
    <!-- Define some output appenders -->
    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender" >
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
      </layout>
    </appender>

    <!-- Setup the root category, add the appenders and set the default priority -->
    <root>
      <level value="TRACE" />
      <appender-ref ref="ConsoleAppender" />
    </root>
  </log4net>
</configuration>