Using Log4Net with C# Applications
Step 1: Download Log4Net from http://logging.apache.org/log4net/download.html.
Step 2: Copy the \bin\net\2.0\release\log4net.dll to your project.
Step 3: Add a reference to the dll in your project.
Step 4: Add the following line to your assemblyinfo.cs
[assembly: log4net.Config.XmlConfigurator(ConfigFile="Log4Net.config", Watch=true)]
Step 5: Create new config file in your project and name it Log4Net.config. Put the following configuration in it.
<?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" /> </configSections> <log4net debug="true"> <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender"> <file value="/applicationLog.txt" /> <appendToFile value="true" /> <rollingStyle value="Size" /> <maxSizeRollBackups value="10" /> <maximumFileSize value="10MB" /> <staticLogFileName value="true" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%-5p %d %5rms %-22.22c{1} %-18.18M - %m%n" /> </layout> </appender> <root> <level value="DEBUG" /> <appender-ref ref="RollingLogFileAppender" /> </root> </log4net> </configuration>
Step 6: Use the name space in your application as
using log4net;
Step 7: Create a logger instance by using
private static log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
Step 8: Harness the power of log4net by using its inbuilt methods such as
catch (Exception ex) { log.Fatal(ex.Message); }
