protected override void OnStartup(StartupEventArgs e)
{
///Connfiguration Log4Net
log4net.Config.XmlConfigurator.Configure();
#region Log4Net
logger.Info(" ============= Started Logging ============= ");
logger.Warn(" ============= Started Logging ============= ");
logger.Error(" ============= Started Logging ============= ");
logger.Fatal(" ============= Started Logging ============= ");
#endregion
base.OnStartup(e);
}