<Window.Resources>
<DataTemplate x:Key="ItemTemplate">
<TextBlock Text="{Binding}" Foreground="Red" />
</DataTemplate>
<DataTemplate x:Key="SelectedTemplate">
<TextBlock Text="{Binding}" Foreground="White" />
</DataTemplate>
<Style TargetType="{x:Type ListBoxItem}" x:Key="ContainerStyle">
<Setter Property="ContentTemplate" Value="{StaticResource ItemTemplate}" />
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="ContentTemplate" Value="{StaticResource SelectedTemplate}" />
</Trigger>
</Style.Triggers>
</Style>
</Window.Resources>
<ListBox x:Name="lstItems" ItemContainerStyle="{StaticResource ContainerStyle}" />
