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  • Logging using log4net

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    Log4net is an open source library that allows .NET applications to log information in many ways. Here we are going to see an example for logging in a file.


    Few steps to follow to log in a file:


    1) Add log4Net dll in the application.


    2) Add few pieces of information in the config file in order to make it work properly with log4net.


     <log4net debug="true">
          <level value="ALL" />
          <appender-ref ref="file" />
        <appender name="file" type="log4net.Appender.RollingFileAppender, log4net">
          <file value="LogBackUp\Log.txt" />
          <appendToFile value="true" />
          <rollingStyle value="Size" />
          <maximumFileSize value="5MB" />
          <maxSizeRollBackups value="10" />
          <staticLogFileName value="true" />
          <layout type="log4net.Layout.PatternLayout">
            <conversionPattern value="%date [%-5level] (%thread) %logger - %message%newline" />


    3) Need to initialize Logger and place some line of code. In the given example, "OpenTicket" in the name of the class to which we have to do logging.

     private static ILog _logger = null;
            private static ILog Logger
                    if (_logger == null)
                        _logger = LogManager.GetLogger(typeof(OpenTicket));
                    return _logger;


    Hope, this example will help you!

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