unable to create log file - wpf

Question

I am using below code for creating logging in my project using PRISM ILoggrFacade.
But i am not sure is the best way and second thing how can i use CustomLogger class logging because i am unable to create logging.
public class CustomLogger : ILoggerFacade
{
protected static readonly ILog log = LogManager.GetLogger(typeof(CustomLogger));
public CustomLogger()
{
log4net.Config.XmlConfigurator.Configure();
}
public void Log(string message, Category category, Priority priority)
{
switch (category)
{
case Category.Debug:
log.Debug(message);
break;
case Category.Warn:
log.Warn(message);
break;
case Category.Exception:
log.Error(message);
break;
case Category.Info:
log.Info(message);
break;
}
}
}
Bootstrapper
private readonly CustomLogger _logger = new CustomLogger();
protected override ILoggerFacade CreateLogger()
{
return _logger;
}
ViewModel
logger.Log("Logging success", Category.Info, Priority.None);
log4net.config
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,Log4net"/>
</configSections>
<log4net>
<root>
<level value="DEBUG" />
<appender-ref ref="LogFileAppender" />
</root>
<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="C:\temp\log.txt" />
<param name="AppendToFile" value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%date [%thread] %message%newline" />
</layout>
</appender>
</log4net>
</configuration>

Answer 1

Problem with above code is that need to configure log4net in assembly like below:
[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4Net.config", Watch = true)]
Also in addition if you wan to drag log4net in ViewModels the use below code
private readonly ILoggerFacade _loggerFacade;
public ContentAViewViewModel(ILoggerFacade loggerFacade)
{
_loggerFacade = loggerFacade;
}
Example
private void LoadPeople()
{
_loggerFacade.Log("Load People", Category.Debug, Priority.High);
}