Log4net using notes in WinForm

Add the app. Config, and add the following:

<?XML version= "1.0" encoding= "Utf-8"?><Configuration>  <configsections>    < Sectionname= "Log4net"type= "log4net." Config.log4netconfigurationsectionhandler,log4net "/>  </configsections>  <log4net>    <Appendername= "Rollinglogfileappender"type= "log4net." Appender.rollingfileappender ">      <paramname= "File"value= "Log\log.txt" />      <paramname= "Appendtofile"value= "true" />      <paramname= "Maxsizerollbackups"value= "+" />      <paramname= "maximumFileSize"value= "2MB" />      <paramname= "Rollingstyle"value= "Size" />      <paramname= "Staticlogfilename"value= "true" />      <Layouttype= "log4net." Layout.patternlayout ">        <paramname= "Conversionpattern"value= "%-5p%d [%c]%m%n" />      </Layout>    </Appender>    <Root>      < Levelvalue= "All" />      <Appender-refref= "Rollinglogfileappender" />    </Root>  </log4net></Configuration>

If you need to add additional nodes to the App. Config, ensure that configsections is at the top, otherwise you will have the following error message:

< configsections > < Configuration The first child element of a > element.

The Program.cs file looks like this:

Static classProgram {StaticLog4net. ILog LOG =log4net. Logmanager.getlogger (Methodbase.getcurrentmethod ().        DeclaringType); /// <summary>        ///The main entry point for the application. /// </summary>[STAThread]Static voidMain () {//Catching unhandled exceptionsApplication.setunhandledexceptionmode (unhandledexceptionmode.catchexception); Application.ThreadException+=NewSystem.Threading.ThreadExceptionEventHandler (application_threadexception); AppDomain.CurrentDomain.UnhandledException+=NewUnhandledexceptioneventhandler (currentdomain_unhandledexception);            Application.enablevisualstyles (); Application.setcompatibletextrenderingdefault (false); Application.Run (NewFormMain ()); }        Static voidApplication_threadexception (Objectsender, System.Threading.ThreadExceptionEventArgs e) {LOG.            Error (e.exception); //throw new Exception ("Thread Unknown Exception", e.exception);MessageBox.Show (E.exception.message,"Thread Exception", MessageBoxButtons.OK, Messageboxicon.error);        Application.exit (); }        Static voidCurrentdomain_unhandledexception (Objectsender, UnhandledExceptionEventArgs e) {Exception ex= E.exceptionobject asException; LOG.            Error (ex); MessageBox.Show (ex. Message,"Application Exceptions", MessageBoxButtons.OK, Messageboxicon.error);        Application.exit (); }    }

Log4net using notes in WinForm