如何通过代码启用/禁用日志记录和文件附加器存储在配置中的信息?

我有一个使用log4net进行日志记录的框架,我知道我们可以通过配置文件禁用或启用log4net中所需的日志记录。我想开发一些设置类,以便管理员或用户可以设置日志等。log4net中获取配置文件并通过代码更改配置文件中的设置的类等是什么?(是否有或应该使用.NET System.xml)任何代码段?

<?xml version="1.0" encoding="utf-8" ?>
<log4net>

  <root>
    <level value="ALL" />
    <!--<appender-ref ref="LogFileAppender" />-->
    <!--<appender-ref ref="ConsoleAppender" />-->
    <appender-ref ref="DEBUG-RollingLogFileAppender" />
    <appender-ref ref="Error-RollingLogFileAppender" />
  </root>

  <appender name="LogFileAppender" type="log4net.Appender.FileAppender" >
    <param name="File" value="log-file.txt" />
    <param name="AppendToFile" value="true" />
    <layout type="log4net.Layout.PatternLayout">
      <param name="Header" value="[Header]\r\n"/>
      <param name="Footer" value="[Footer]\r\n"/>
      <param name="ConversionPattern" value="%d [%t] %-5p %c %ndc %P{auth} - %m%n" />
    </layout>
  </appender>

  <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender" >
    <layout type="log4net.Layout.PatternLayout">
      <param name="ConversionPattern" value="%d [%t] %-5p %c %ndc %P{auth} - %m%n" />
    </layout>
  </appender>

  <appender name="DEBUG-RollingLogFileAppender" type="log4net.Appender.RollingFileAppender,log4net">
    <param name="File" value="..\\logs\\debug" />
    <param name="AppendToFile" value="true" />
    <param name="StaticLogFileName" value="false" />
    <param name="RollingStyle" value="Composite" />
    <param name="DatePattern" value=".yyyyMMdd'.log'" />
    <param name="MaxSizeRollBackups" value="30" />
    <param name="MaximumFileSize" value="5MB" />
    <layout type="log4net.Layout.PatternLayout,log4net">
      <!--<param name="ConversionPattern" value="%d [%t] %-5p %c %ndc %P{auth} - %m%n" />-->
      <param name="ConversionPattern" value="%d [%t] %-5p - %m%n" />
    </layout>
    <filter type="log4net.Filter.LevelRangeFilter">
      <!--<levelMin value="INFO" />-->
      <levelMax value="INFO" />
    </filter>
  </appender>

  <appender name="Error-RollingLogFileAppender" type="log4net.Appender.RollingFileAppender,log4net">
    <param name="Threshold" value="WARN"/>
    <param name="File" value="..\\logs\\errors" />
    <param name="AppendToFile" value="true" />
    <param name="StaticLogFileName" value="false" />
    <param name="RollingStyle" value="Composite" />
    <param name="DatePattern" value=".yyyyMMdd'.log'" />
    <param name="MaxSizeRollBackups" value="30" />
    <param name="MaximumFileSize" value="5MB" />
    <layout type="log4net.Layout.PatternLayout,log4net">
        <header value="&#13;&#10;" />
        <footer value="&#13;&#10;======================================================================" />
      <param name="ConversionPattern" value="%d [%t] %-5p - %m%n" />
    </layout>
  </appender>

</log4net>