How to read and update the log file directory, with .NET C#?

[Chan Kong Hing]

I am a newbie in .Net C# and log4Net.
   
  I have my log4net running OK with my .NET app and this is the configuration 
file.
   
  I need to display to end-user what the directory is for my log file and i 
want to allow user to provide a new directory name to update the log file.
   
  how i can do that?
   
  please help and thanks
   
  <?xml version="1.0" encoding="utf-8" ?>
  <configuration>
  <configSections>
  <section name="log4net" 
type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>
  <log4net>
  <appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
  <file value="c:\\app.log" />
  <appendToFile value="true" />
  <rollingStyle value="Size" />
  <maxSizeRollBackups value="10" />
  <maximumFileSize value="1024KB" />
  <staticLogFileName value="true" />
  <layout type="log4net.Layout.PatternLayout">
  <conversionPattern value="%date [%thread] %-5level %logger - 
%message%newline" />
  </layout>
  </appender>
  <root>
  <level value="ALL" />
  <appender-ref ref="LogFileAppender" />
  </root>
  </log4net>

       
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