log4net snippets

log4net-01.cs

// variable declaration
private static readonly ILog log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

// You have several options to make it alive
// 1) AssemblyInfo.cs
[assembly: log4net.Config.XmlConfigurator(Watch = true)]

// 2) manual kick in the beginning of program execution
XmlConfigurator.Configure();

log4net-02.config

<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>

  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
  </startup>
  <log4net>
    <appender name="FileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="d:\logs\data.log" />
      <rollingStyle value="Once" />
      <maxSizeRollBackups value="10" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger - %message%newline%exception" />
      </layout>
    </appender>
    <root>
      <level value="All" />
      <appender-ref ref="FileAppender" />
    </root>
  </log4net>
</configuration>