如何在asp.net web api应用中使用log4net.elmah.io包在elmah.io中设置URL、状态码、版本等参数？

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

<log4net>
  <appender name="ElmahIoAppender" type="Elmah.Io.Log4Net.ElmahIoAppender, Elmah.Io.Log4Net">
    <apiKey value="YOUR_API_KEY" />
    <logId value="YOUR_LOG_ID" />
    <url value="YOUR_ELMAH_IO_URL" />
    <statusCode value="YOUR_STATUS_CODE" />
    <version value="YOUR_VERSION" />
  </appender>
  
  <root>
    <level value="ALL" />
    <appender-ref ref="ElmahIoAppender" />
  </root>
</log4net>

protected void Application_Start()
{
    log4net.Config.XmlConfigurator.Configure();
}

private static readonly ILog log = LogManager.GetLogger(typeof(YourController));

public IHttpActionResult YourAction()
{
    log.Info("This is an informational message.");
    // Other code
}