Hello Bruno, configuring log4net directly from the code is my dream too, but documentation did not give any example how to do this. It is simple if you need to use the only appender - use BasicConfigurator: log4net.Appender.FileAppender fa = new log4net.Appender.FileAppender(); fa.AppendToFile = false; fa.File = "ipagent.log"; fa.Layout = new log4net.Layout.PatternLayout("%date{dd-MM-yyyy HH:mm:ss,fff} %5level [%2thread] %message (%logger{1}:%line)%n"); fa.Threshold = log4net.Core.Level.Debug; fa.ActivateOptions(); log4net.Config.BasicConfigurator.Configure(fa); I have this tested and it works well. But when configuration is more complex, I didn't found a way how to make logging to work. Look at this message http://www.mail-archive.com/log4net-user@logging.apache.org/msg03890.htm l, there you find a piece of my (nonworking) code. If you'll be able to find what is missing there, let me know Radovan Raszka
________________________________ From: Knittel Bruno [mailto:[EMAIL PROTECTED] Sent: Monday, May 05, 2008 9:32 AM To: log4net-user@logging.apache.org Subject: log4net configuration withtou Xml file Hello Everyone, I need to be able to configure log4net without the XmlConfigurator, that is directly from my code. I am aware of the BasicConfigurator but one appender is not enough for me. I would like to be able to create some new appenders, remove (or disable) them and change their log threshold at runtime. I am working under Compact Framework 2.0. I already took a look at this ( http://www.mail-archive.com/log4net-user@logging.apache.org/msg02895.htm l ) mail that gave me many informations, but did not yet found how to create an appender and register it not for one logger but for all (and all the ones that will be created after I registered my appender). In fact how can I achieve a configuration like the following file but programmatically: <configuration> <log4net> <appender name="TextLogFileAppender" type="log4net.Appender.FileAppender" > <file value="log.xml" /> <appendToFile value="true" /> <layout type="log4net.Layout.XmlLayoutSchemaLog4j" /> <param name="Threshold" value="ERROR" /> </appender> <appender name="ConsoleErrorAppender" type="log4net.Appender.ConsoleAppender"> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %-5level %logger [%ndc] <%property{auth}> - %message%newline" /> </layout> <param name="Threshold" value="FATAL" /> </appender> <appender name="UdpAppender" type="log4net.Appender.UdpAppender"> <localPort value="8080" /> <remoteAddress value="192.168.1.1" /> <remotePort value="8080" /> <layout type="log4net.Layout.XmlLayoutSchemaLog4j"> <locationInfo value="true" /> </layout> <param name="Threshold" value="DEBUG" /> </appender> <!-- Setup the root category, add the appenders and set the default level --> <root> <appender-ref ref="TextLogFileAppender" /> <appender-ref ref="ConsoleErrorAppender" /> <appender-ref ref="UdpAppender" /> </root> </log4net> </configuration> Best regards and many thanks in advance for any help, Bruno