Question

I would like to store 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)] 

3. Initialize the logger as follows:

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

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

    <configSections>       <section name='log4net' type='log4net.Config.Log4NetConfigurationSectionHandler, log4net' />     </configSections>     <log4net>       <appender name='EventLogAppender' type='log4net.Appender.EventLogAppender' >         <layout type='log4net.Layout.PatternLayout'>           <conversionPattern value='%date [%thread] %-5level %logger [%property{NDC}] - %message%newline' />         </layout>       </appender>       <root>         <level value='INFO' />         <appender-ref ref='ConsoleAppender' />       </root>     </log4net> 

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

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);     return log; }