/// <summary>
/// Append the log information to the Messages
/// </summary>
/// <param name="loggingEvent">The log event.</param>
protected override void Append(LoggingEvent loggingEvent)
{
using (StringWriter writer = new StringWriter(CultureInfo.InvariantCulture))
{
_simpleLayout.Format(writer, loggingEvent);
LastMessage = writer.ToString();
}
Layout.Format(_writer, loggingEvent);
RaisePropertyChanged("Messages");
}