Silverlight - Stop highlights on a listbox

I've got a silverlight listbox and I want to remove the colour change highlight that occurs when the user selects an item in the listbox.

By default when an item is selected it highlights the item a sort of light blue color.

How can I stop this from occuring?

As an side question, how do I customise this to any arbitary colour?



You can do this by customizing the existing Control Template for a ListBox Item. The easy way to do this is to fire up Expression Blend, right click a ListBoxItem, go to Edit Control Parts (Template) and select Edit a Copy... then customize the Fill color of the fillColor and fillColor2 rectangles as required.

The Xaml below sets the ListBoxItem mouse-over color to be transparent and the selected color to be bright green but you can customize this to your needs:

<UserControl x:Class="SilverlightApplication2.Page"
    Width="400" Height="300" Background="#FF000000">
    <Style x:Key="ListBoxItemStyleTransparent" TargetType="ListBoxItem">
      <Setter Property="Padding" Value="3"/>
      <Setter Property="HorizontalContentAlignment" Value="Left"/>
      <Setter Property="VerticalContentAlignment" Value="Top"/>
      <Setter Property="Background" Value="Transparent"/>
      <Setter Property="BorderThickness" Value="1"/>
      <Setter Property="TabNavigation" Value="Local"/>
      <Setter Property="Template">
          <ControlTemplate TargetType="ListBoxItem">
            <Grid Background="{TemplateBinding Background}">
                <vsm:VisualStateGroup x:Name="CommonStates">
                  <vsm:VisualState x:Name="Normal"/>
                  <vsm:VisualState x:Name="MouseOver">
                      <DoubleAnimationUsingKeyFrames Storyboard.TargetName="fillColor" Storyboard.TargetProperty="Opacity">
                        <SplineDoubleKeyFrame KeyTime="0" Value=".35"/>
                  <vsm:VisualState x:Name="Disabled">
                      <DoubleAnimationUsingKeyFrames Storyboard.TargetName="contentPresenter" Storyboard.TargetProperty="Opacity">
                        <SplineDoubleKeyFrame KeyTime="0" Value=".55"/>
                <vsm:VisualStateGroup x:Name="SelectionStates">
                  <vsm:VisualState x:Name="Unselected"/>
                  <vsm:VisualState x:Name="Selected">
                      <DoubleAnimationUsingKeyFrames Storyboard.TargetName="fillColor2" Storyboard.TargetProperty="Opacity">
                        <SplineDoubleKeyFrame KeyTime="0" Value=".75"/>
                <vsm:VisualStateGroup x:Name="FocusStates">
                  <vsm:VisualState x:Name="Focused">
                      <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetName="FocusVisualElement" Storyboard.TargetProperty="Visibility">
                        <DiscreteObjectKeyFrame KeyTime="0">
                  <vsm:VisualState x:Name="Unfocused"/>
              <Rectangle x:Name="fillColor" IsHitTestVisible="False" Opacity="0" RadiusX="1" RadiusY="1" Fill="Transparent"/>
              <Rectangle x:Name="fillColor2" IsHitTestVisible="False" Opacity="0" Fill="#FF00FF00" RadiusX="1" RadiusY="1"/>
              <ContentPresenter HorizontalAlignment="Left" Margin="{TemplateBinding Padding}" x:Name="contentPresenter" Content="{TemplateBinding Content}" ContentTemplate="{TemplateBinding ContentTemplate}"/>
              <Rectangle x:Name="FocusVisualElement" Visibility="Collapsed" Stroke="#FF6DBDD1" StrokeThickness="1" RadiusX="1" RadiusY="1"/>
  <Grid x:Name="LayoutRoot" Background="White">
    <ListBox x:Name="ListBoxTest">
      <ListBoxItem Content="Some String" Style="{StaticResource ListBoxItemStyleTransparent}" />

The fillColor Rectangle specifies the color to use when the user mouses-over a ListBoxItem. In the code above I have set this to be Transparent so no color will appear when you mouse over the ListBoxItem.

The fillColor2 specifies the color to use when a ListBoxItem is selected. In the code above I've specified #FF00FF00 so the color will be bright green when a ListBoxItem is selected.

In your situation you would set the Fill property of the fillColor2 Rectangle to be Transparent to simulate no color when the user selects an item.

If you don't want selection, you might consider using an ItemsControl instead of the ListBox. (ItemsControl is a simpler version of the same control).


    <Style TargetType="ListBoxItem">
        <Setter Property="Focusable" Value="false"></Setter>

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