I'm trying to make my edit box have a black background, so my constructor looks like this:
GUI = new RichEditBox()
{
Margin = new Thickness(0, 510, 0, 0),
Width = 550,
Height = 250,
Background = new SolidColorBrush(Colors.White),
IsSpellCheckEnabled = false,
IsColorFontEnabled = true,
IsEnabled = false,
IsTextScaleFactorEnabled = false,
Opacity = 0,
SelectionFlyout = null,
FontFamily = new FontFamily("Consolas"),
FocusVisualPrimaryBrush = new SolidColorBrush(Colors.Black),
FocusVisualSecondaryBrush = new SolidColorBrush(Colors.Black),
Foreground = new SolidColorBrush(Colors.Black),
UseSystemFocusVisuals = false,
Header = "Bash"
};
The problem is that the edit box looks like this when selected:
But when it's not selected and the mouse is inside of box it looks exactly how I wanted:
How can I change the background of a Rich Edit Box using code while focused?
For your requirement, you need to custom RichEditBox
style and modify the Focused
VisualState
. I create the complete style that you use directly.
<Style x:Key="FocusedDrakBackgroudStyle" TargetType="RichEditBox">
<Setter Property="Foreground" Value="{ThemeResource TextControlForeground}" />
<Setter Property="Background" Value="{ThemeResource TextControlBackground}" />
<Setter Property="ContentLinkForegroundColor" Value="{ThemeResource ContentLinkForegroundColor}" />
<Setter Property="ContentLinkBackgroundColor" Value="{ThemeResource ContentLinkBackgroundColor}" />
<Setter Property="SelectionHighlightColor" Value="{ThemeResource TextControlSelectionHighlightColor}" />
<Setter Property="BorderBrush" Value="{ThemeResource TextControlBorderBrush}" />
<Setter Property="BorderThickness" Value="{ThemeResource TextControlBorderThemeThickness}" />
<Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
<Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}" />
<Setter Property="ScrollViewer.HorizontalScrollMode" Value="Auto" />
<Setter Property="ScrollViewer.VerticalScrollMode" Value="Auto" />
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto" />
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
<Setter Property="ScrollViewer.IsDeferredScrollingEnabled" Value="False" />
<Setter Property="TextWrapping" Value="Wrap" />
<Setter Property="Padding" Value="{ThemeResource TextControlThemePadding}" />
<Setter Property="UseSystemFocusVisuals" Value="{ThemeResource IsApplicationFocusVisualKindReveal}" />
<Setter Property="ContextFlyout" Value="{StaticResource TextControlCommandBarContextFlyout}" />
<Setter Property="SelectionFlyout" Value="{StaticResource TextControlCommandBarSelectionFlyout}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="RichEditBox">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<ContentPresenter
x:Name="HeaderContentPresenter"
Grid.Row="0"
Margin="{ThemeResource RichEditBoxTopHeaderMargin}"
VerticalAlignment="Top"
x:DeferLoadStrategy="Lazy"
Content="{TemplateBinding Header}"
ContentTemplate="{TemplateBinding HeaderTemplate}"
FontWeight="Normal"
Foreground="{ThemeResource TextControlHeaderForeground}"
TextWrapping="Wrap"
Visibility="Collapsed"
/>
<Border
x:Name="BorderElement"
Grid.Row="1"
Grid.RowSpan="1"
MinWidth="{ThemeResource TextControlThemeMinWidth}"
MinHeight="{ThemeResource TextControlThemeMinHeight}"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="{TemplateBinding CornerRadius}"
/>
<ScrollViewer
x:Name="ContentElement"
Grid.Row="1"
Margin="{TemplateBinding BorderThickness}"
Padding="{TemplateBinding Padding}"
AutomationProperties.AccessibilityView="Raw"
HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}"
IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}"
IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}"
IsTabStop="False"
IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}"
VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}"
VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}"
ZoomMode="Disabled"
/>
<TextBlock
x:Name="PlaceholderTextContentPresenter"
Grid.Row="1"
Margin="{TemplateBinding BorderThickness}"
Padding="{TemplateBinding Padding}"
Foreground="{ThemeResource TextControlPlaceholderForeground}"
IsHitTestVisible="False"
Text="{TemplateBinding PlaceholderText}"
TextAlignment="{TemplateBinding TextAlignment}"
TextWrapping="{TemplateBinding TextWrapping}"
/>
<ContentPresenter
x:Name="DescriptionPresenter"
Grid.Row="2"
x:Load="False"
AutomationProperties.AccessibilityView="Raw"
Content="{TemplateBinding Description}"
Foreground="{ThemeResource SystemControlDescriptionTextForegroundBrush}"
/>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HeaderContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlHeaderForegroundDisabled}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement" Storyboard.TargetProperty="Background">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBackgroundDisabled}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement" Storyboard.TargetProperty="BorderBrush">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBorderBrushDisabled}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlForegroundDisabled}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="PlaceholderTextContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlPlaceholderForegroundDisabled}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Normal" />
<VisualState x:Name="PointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement" Storyboard.TargetProperty="BorderBrush">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBorderBrushPointerOver}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement" Storyboard.TargetProperty="Background">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBackgroundPointerOver}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="PlaceholderTextContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlPlaceholderForegroundPointerOver}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlForegroundPointerOver}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Focused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="PlaceholderTextContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlPlaceholderForegroundFocused}" />
</ObjectAnimationUsingKeyFrames>
<!-- modify the BorderElement opacity and backgroud property when focused -->
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement" Storyboard.TargetProperty="Background">
<DiscreteObjectKeyFrame KeyTime="0" Value="Black" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement" Storyboard.TargetProperty="Opacity">
<DiscreteObjectKeyFrame KeyTime="0" Value="0.5" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement" Storyboard.TargetProperty="BorderBrush">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBorderBrushFocused}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlForegroundFocused}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement" Storyboard.TargetProperty="RequestedTheme">
<DiscreteObjectKeyFrame KeyTime="0" Value="Light" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>