ListBox item selected

gistfile1.xml

<ListBox.ItemContainerStyle>
    <Style TargetType="ListBoxItem">
        <Style.Triggers>
            <Trigger Property="IsSelected" Value="True" >                                    
                <Setter Property="Background" Value="Transparent" />
                <Setter Property="Foreground" Value="Black" />
            </Trigger>
        </Style.Triggers>
        <Style.Resources>
            <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Transparent"/>
        </Style.Resources>
    </Style>
</ListBox.ItemContainerStyle>