log4net in user controls with different log files

Question

I like to use more then one log file(with RollingFileAppender) in my C# applications.

The default log is "main.log".

• The user can create new instance from a user control and can start something in this. I want to log the events into Log filename "log1.log"
• The next instance of user control write into "log2.log" etc...

How can I configure log4net for this application?

Thanks.

Answer 1

Would something like this work?

http://geekswithblogs.net/rgupta/archive/2009/03/03/dynamic-log-filenames-with-log4net.aspx

You would define the log filename in the log4net config, but have the name be a parameter. You would then set that parameter for the user's instance.

The important part of your config:

<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
    <file type="log4net.Util.PatternString" value="c:\logs\%property{LogName}" />
    <appendToFile value="true" />
    // the rest of your config

Change that {LogName} parameter in code like so:

log4net.GlobalContext.Properties["LogName"] = "user-xyz.log";