How I can set log4net to log my files into different folders each day?

Question

1. I want to save all logs during each day in folder named YYYYMMdd - log4net should handle creating new folder depending on system datetime - how I can setup this?

Answer 1

Thank you all. We created SortByFolderFileAppender, which inherit from RollingFileAppender

Example of final result: somewhere\Logs\20100305\Client-104615.0

namespace CustomLogging
{
  public class SortByFolderFileAppender : log4net.Appender.RollingFileAppender
  {
    protected override void OpenFile(string fileName, bool append)
    {
      //Inject folder [yyyyMMdd] before the file name
      string baseDirectory = Path.GetDirectoryName(fileName);
      string fileNameOnly = Path.GetFileName(fileName);
      string newDirectory = Path.Combine(baseDirectory, DateTime.Now.ToString("yyyyMMdd"));
      string newFileName = Path.Combine(newDirectory, fileNameOnly);

      base.OpenFile(newFileName, append);
    }
  }
}