Customizing the Rich TextBox With Styles

The Rich TextBox control can be skinned using the standard Silverlight 2 method of setting Styles in the App.xaml file of your Silverlight project.

Example of how to Apply a Skin to the Rich TextBox

These styles are placed in your XAML and referred to using the Style property:

    <Style TargetType="local:RichTextBox">
        <Setter Property="Background" Value="#ffffff" />
        <Setter Property="BorderBrush" Value="#a4a4a4" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="Padding" Value="2" />
        <Setter Property="VerticalScrollBarVisibility" Value="Auto" />
        <Setter Property="HorizontalScrollBarVisibility" Value="Auto" />
        <Setter Property="PopupTitle" Value="Spelling Suggestions:" />
        <Setter Property="PopupAddText" Value=" Add " />
        <Setter Property="PopupReplaceText" Value=" Replace " />
        <Setter Property="SelectionBackground" Value="#506484f6" />
        <Setter Property="SelectMode" Value="Edit" />
        <Setter Property="Template">
                <ControlTemplate TargetType="local:RichTextBox">
                    <ScrollViewer x:Name="ElementContainer" Padding="{TemplateBinding Padding}" Background="{TemplateBinding Background}" VerticalScrollBarVisibility="{TemplateBinding VerticalScrollBarVisibility}" HorizontalScrollBarVisibility="{TemplateBinding HorizontalScrollBarVisibility}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" IsTabStop="False">
                        <Border x:Name="ElementGrid" VerticalAlignment="Top">
                            <local:RichTextPanel x:Name="ElementChildren" HorizontalAlignment="Left" VerticalAlignment="Top" Background="{TemplateBinding Background}">
                                    <Storyboard x:Name="ElementCursorBlink" BeginTime="0" RepeatBehavior="forever">
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetName="ElementCursor" Storyboard.TargetProperty="(UIElement.Opacity)" Duration="00:00:01">
                                            <LinearDoubleKeyFrame Value="1" KeyTime="0:0:0" />
                                            <LinearDoubleKeyFrame Value="0" KeyTime="0:0:0.5" />
                                            <LinearDoubleKeyFrame Value="1" KeyTime="0:0:1" />
                                    <ScaleTransform x:Name="ElementScale" ScaleX="1" ScaleY="1" />
                                    <Rectangle x:Name="ContentElementBackGround" IsHitTestVisible="False" Fill="White" Opacity="0" />
                                    <ContentControl x:Name="ContentElement" IsTabStop="False" Width="0" Height="0" Opacity="0" />
                                    <Canvas x:Name="ElementObjectSelection" />
                                    <Rectangle x:Name="ElementCursor" Width="1" IsHitTestVisible="False" Fill="#000000" Visibility="Collapsed" />
                                    <Polygon x:Name="ElementSelection" IsHitTestVisible="False" Fill="{TemplateBinding SelectionBackground}" />
                                    <Popup x:Name="ElementBubblePopup">
                                        <Canvas x:Name="ElementBubble" Width="168" Height="108" Cursor="Arrow">
                                                <ScaleTransform x:Name="ElementBubbleScale" ScaleX="1" ScaleY="1" />
                                            <Polygon x:Name="ElementBubbleBackground" Stroke="#888888" StrokeThickness="1">
                                                    <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
                                                        <GradientStop Color="#ffffff" Offset="0.0" />
                                                        <GradientStop Color="#eeeeee" Offset="1.0" />
                                            <TextBlock Text="{TemplateBinding PopupTitle}" FontFamily="Arial" FontSize="14" FontWeight="Normal" Canvas.Left="8" Canvas.Top="8" />
                                            <ComboBox x:Name="ElementSuggestions" Canvas.Left="8" Canvas.Top="30" FontFamily="Arial" FontSize="14" FontWeight="Normal" Width="150" />
                                            <Grid Canvas.Left="8" Canvas.Top="65" Width="150">
                                                <Button x:Name="ElementAdd" FontFamily="Arial" FontSize="14" FontWeight="Normal" Content="{TemplateBinding PopupAddText}" IsTabStop="False" HorizontalAlignment="Left" />
                                                <Button x:Name="ElementReplace" FontFamily="Arial" FontSize="14" FontWeight="Normal" Content="{TemplateBinding PopupReplaceText}" IsTabStop="False" Margin="2 0 0 0" HorizontalAlignment="Right" />
                                    <ContentControl x:Name="ElementContext" IsTabStop="False" Content="{TemplateBinding ContextMenu}" Cursor="Arrow">
                                            <ScaleTransform x:Name="ElementContextScale" ScaleX="1" ScaleY="1" />

As you can see, styling is a powerful method of customizing the controls to suite the look and feel of your Silverlight application.

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