title: Log4net - dynamically switch appender between AdoNetAppender and RollingFileAppender
body: <p>I am using AdoNetAppender (SQL server) in my asp.net application and would like use to RollingFileAppender incase of any connection  issue with SQL. Is there any way to configure to use RollingFileAppender only when there is an issue with AdoNetAppender?</p>
  
  <p>Thanks</p>
  
  <p>por</p>