Question

I am trying to configure a dynamic name for my log but i can’t:

Here is the code in my web.config file:

<appender name="RollingFile" type="log4net.Appender.RollingPatternFileAppender">
  <file type="log4net.Util.PatternString" value="..l\log\%property{LogName}" />
  <appendToFile value="true" />
  <rollingStyle value="Size" />
  <maxSizeRollBackups value="-1" />
  <maximumFileSize value="5000KB" />
  <staticLogFileName value="true" />
  <countDirection value="1"/>
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%m%n" />
  </layout>
  <filter type="log4net.Filter.PropertyFilter">
    <Key value="Version" />
    <StringToMatch value="1" />

  </filter>
  <filter type="log4net.Filter.DenyAllFilter" />

  <root>
    <level value="DEBUG"/>
    <appender-ref ref="RollingFile"/>
  </root>

</appender>
<logger name="File">
  <level value="All" />
  <appender-ref ref="RollingFile" />
</logger>

Here is the global.asax:

log4net.Config.XmlConfigurator.Configure();

The codebehind:

log = LogManager.GetLogger(
            System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
log4net.ThreadContext.Properties["LogName"] = 
            sito + "_Truck_Log_" + DateTime.Today.ToString("dd-MM-yyyy") + ".txt";

This does not create any log files? Why would this be?

Update 1:

I have moved log4net.Config.XmlConfigurator.Configure(); after the set thread context property but still at not work anyway.

Update 2:

@sgmoore: I am sure that I don’t have permissions problems and I am sure that the “sito” variable does not contain invalid characters. I am doing something like this:

In my codebehind:

log4net.GlobalContext.Properties["LogName"] = 
           sito + "_Truck_Log_" + DateTime.Today.ToString("dd-MM-yyyy")+".txt";
log = LogManager.GetLogger(
           System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

In global.asax:

void Application_Start(object sender, EventArgs e) 
{
     log4net.Config.XmlConfigurator.ConfigureAndWatch(
          new System.IO.FileInfo(
            AppDomain.CurrentDomain.SetupInformation.ApplicationBase 
                                                       + "log4net.config")); 
}

But this still won’t work.

Answer 1

You have to set the thread context property before you configure log4net.