Best way to dynamically set an appender file path

Question

I am trying to find somebody smarter than me to validate some syntax I wrote up. The idea is to configure the filename of my RollingFileAppender to the name of the assembly

Answer 1

Here is way to set or change the logfile of the first appender at runtime:

var appender = (log4net.Appender.FileAppender)LogManager.GetRepository().GetAppenders()[0];
appender.File = "C:\whatever.log";
appender.ActivateOptions();