Simplest Log4Net Configuration

1. Add a reference to log4net. dll
2. Add the following in Properties/AssemblyInfo. cs of the project:
   [Assembly: log4net. Config. XmlConfigurator ()]
3. Call LoggerManager. GetLogger () at least once in the Assembly entry ()
4. App. config sample Code
   <? Xml version = "1.0" encoding = "UTF-8"?>
   <Configuration>
   <ConfigSections>
   <Section name = "log4net" type = "log4net. Config. Log4NetConfigurationSectionHandler, log4net"/>
   </ConfigSections>
   
   <! -- Log4net internal messages -->
   <Deleetask>
   <Add key = "log4net. Internal. Debug" value = "true"/>
   </AppSettings>
   
   <Log4net>
   <Root>
   <Level value = "ALL"/>
   <Appender-ref = "leleappender"/>
   <Appender-ref = "FileAppender"/>
   </Root>
   
   <Appender name = "leleappender" type = "log4net. Appender. ConsoleAppender">
   <Layout type = "log4net. Layout. PatternLayout">
   <Param name = "ConversionPattern" value = "[SimpleAppConfig] % date [% thread] %-5 level % logger-% message % newline"/>
   </Layout>
   </Appender>
   
   <Appender name = "FileAppender" type = "log4net. Appender. FileAppender">
   <File value = "log-file.txt"/>
   <AppendToFile value = "true"/>
   <LockingModel type = "log4net. Appender. FileAppender + MinimalLock"/>
   <Layout type = "log4net. Layout. PatternLayout">
   <ConversionPattern value = "% date [% thread] %-5 level % logger [% property {NDC}]-% message % newline"/>
   </Layout>
   </Appender>
   
   </Log4net>
   </Configuration>
   
5. Use in code

   Private static ILog Logger = LogManager. GetLogger (MethodBase. GetCurrentMethod (). DeclaringType );

   If (logger. IsDebugEnabled)

   {

   Logger. DebugFormat ("{0}-{1}", MethodBase. GetCurrentMethod (), "Init ");

   }

Code snippet for log4net