<ListBox Height="224" HorizontalAlignment="Left" Margin="205,10,0,0" Name="lstNodes" VerticalAlignment="Top" Width="128" Grid.RowSpan="2">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <StackPanel.Resources>
                            <l:EnumToTriStateConverter x:Key="TriConverter" />
                        </StackPanel.Resources>
                        <CheckBox IsThreeState="True" IsChecked="{Binding Path=Permission, Converter={StaticResource TriConverter}, ConverterParameter={x:Static l:NodeStatusTypes.Undefined}}"  />
                        <TextBlock Text="{Binding Path=Name}" />
                        <TextBlock Text="{Binding Path=Permission}" />
                    </StackPanel>
                </DataTemplate>
            </ListBox.ItemTemplate>