Have log4net use application config file for configuration data.

Question

I would like to stored log4net config data in my application.config file. Based on my understanding of the documentation, I did the following: 1. Add a reference to log4net.dll 2. Add the following line in AssemblyInfo.cs:

[assembly: log4net.Config.XmlConfigurator(Watch = true)]

1. Initialize the logger as follows:

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

2. I have the following code in my app.config:

However, when I run the application, I get the following error on the console: No appender named [Consoleappender] could be found. How can I get log4net to read settings from the config file?

Thanks!

Answer 1

have you tried adding a configsection handler to your app.config? e.g.

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

Answer 2

Add a line to your app.config in the configSections element

 <configSections>
   <section name="log4net" 
          type="log4net.Config.Log4NetConfigurationSectionHandler, log4net, Version=1.2.10.0, Culture=neutral, PublicKeyToken=1b44e1d426115821" />
  </configSections>

Then later add the log4Net section, but delegate to the actual log4Net config file elsewhere...

  <log4net configSource="Config\Log4Net.config" />

In your application code, when you create the log, write

    private static ILog GetLog(string logName)
    {
        ILog log = LogManager.GetLogger(logName);
        log4net.Config.XmlConfigurator.Configure();
        return log;
    }

Answer 3

Charles,

Thank you for your suggestion. The problem was actually "operator headspace" rather than anything wrong on the config part. I copied the log4net example, but I didn't change appender. I am able to use the log4net config section embedded in my config file without any problems.