Log4net part in webconfig seems to be skipped

i try to include log4net in my project and have quite weird problem.

My looks like below:

  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net, Version=1.2.10.0, Culture=neutral, PublicKeyToken=1b44e1d426115821" />
    <section name="microsoft.identityModel" type="Microsoft.IdentityModel.Configuration.MicrosoftIdentityModelSection, Microsoft.IdentityModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  </configSections>

and later in webconfig have:

  <log4net>
   (...)     
  </log4net>

Log4net doesn't work-file with errors isn't being created.

Now when i changed on purpose config section for "microsoft.identityModel" (did some typo) and tried to go on my website -there is error. But when i changed on purpose config section for "log4net" - website works well-looks like

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

is skipped or doesn't matter. Any ideas what i'm doing wrong?

Answers


Make sure you have initialized your logger in Application_Start:

protected void Application_Start()
{
    log4net.Config.XmlConfigurator.Configure();
    ...
}

or use the assembly level attribute as illustrated in the documentation:

[assembly: log4net.Config.XmlConfigurator()]

Put this in your Global.asax file:

void Application_Start(object sender, EventArgs e) 
{
   log4net.Config.XmlConfigurator.Configure();
}

You need to to tell log4net how it should configure itself somewhere. Global.asax is a good place for this.


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