[assembly: XmlConfigurator(Watch = true)]

public Log4NetLogger()
{
    log4net.Config.XmlConfigurator.Configure();
    Logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
}

public Log4NetLogger()
{
    Logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);


    Logger.IsDebugEnabled = true;
}

log4net.Config.XmlConfigurator.Configure();

[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)]

XmlConfigurator.Configure(
    ConfigurationManager.GetSection(
        "applicationSettings/log4net") as XmlElement);

<level value="DEBUG" />

<logger name="Log4NetTEST" >
  <level value="DEBUG" />
  <appender-ref ref="AdoNetAppender" />
</logger>

LogManager.GetLogger("Log4NetTEST");

<root>
      <level value="ALL" />
      <appender-ref ref="AppenderName" />
    </root>

<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler" />
  </configSections>
  <log4net>
    <root>
      <level value="DEBUG" />
      <appender-ref ref="RollingFileAppender" />
    </root>
    <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="C:LOGSIDMUserRoleManagementIDMUserRoleManagement.txt" />
      <appendToFile value="true" />
      <rollingStyle value="Size" />
      <maxSizeRollBackups value="5" />
      <maximumFileSize value="1000KB" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%d{yyyy-MM-ddTHH:mm:ss} %-5p [%t] - %m%n" />
      </layout>
    </appender>
  </log4net>
</configuration>