New Post: [Version 2.0] IconSource binding is not working

public FileStatsViewModel()
            :base("File Stats")
        {
            ...

            BitmapImage bi = new BitmapImage();
            bi.BeginInit();
            bi.UriSource = new Uri("pack://application:,,/Images/property-blue.png");
            bi.EndInit();
            IconSource = bi;
        }

<Style TargetType="{x:Type avalonDock:LayoutAnchorableItem}">
      ...
      <Setter Property="IconSource" Value="{Binding Model.IconSource}"/>
      ...
</Style>