Configure log4net logging in dll

Question

I\'m setting up a dll to be used as a third party dll for a different application. I want this dll to have it\'s own logging so the external application doesn\'t have to dea

Answer 1

You can configure log4net programmatically. Perhaps add this code to the constructor of your DLL.

if (!log4net.LogManager.GetRepository().Configured)
{
    // my DLL is referenced by web service applications to log SOAP requests before
    // execution is passed to the web method itself, so I load the log4net.config
    // file that resides in the web application root folder
    var configFileDirectory = (new DirectoryInfo(TraceExtension.AssemblyDirectory)).Parent; // not the bin folder but up one level
    var configFile = new FileInfo(configFileDirectory.FullName + "\\log4net.config");

    if (!configFile.Exists)
    {
        throw new FileLoadException(String.Format("The configuration file {0} does not exist", configFile));
    }

    log4net.Config.XmlConfigurator.Configure(configFile);
}