Add Setter Target Property

Is your feature request related to a problem? Please describe. Change the ownership of another element when the selector is activated.

Describe the solution you’d like Considering following Xaml

    <StackPanel>
        <CheckBox x:Name="Choiche1" Content="Quatsion ?"/>
        <TextBox x:Name="Input"/>
        <ComboBox x:Name="List"/>
     </StackPanel>

I’d like to write selector like this:

    <Style Selector="CheckBox#Choiche1[IsChecked=False]">
      <Setter Target="Input" Property="IsEnabale" Value="False"/>
      <Setter Target="List" Property="IsEnabale" Value="True"/>
    </Style>
    <Style Selector="CheckBox#Choiche1[IsChecked=True]">
      <Setter Property="Backgroud" Value="Green"/>
      <Setter Target="Input" Property="IsEnabale" Value="True"/>
      <Setter Target="List" Property="IsEnabale" Value="False"/>
    </Style>

Describe alternatives you’ve considered I know, I can do a similar thing with binding. But the advantage of the proposed solution is to have everything centralized.

Additional context WPF Setter.TargetName UWP Setter.Target

[amwx]

A long time ago I was also asking if we should add this as a feature.

Nowadays, it feels less useful, especially with 11.0.

I disagree. For the most part, yes, nested styles helped out here a lot but Selectors are still kinda verbose

<Style Selector="^:pointerover">
    <Style Selector="^ /template/ ContentPresenter#ContentPresenter">
        <Setter Property="Foreground" Value="{DynamicResource CheckBoxForegroundUncheckedPointerOver}" />
    </Style>
    <Style Selector="^ /template/ Border#Root">
        <Setter Property="Background" Value="{DynamicResource CheckBoxBackgroundUncheckedPointerOver}" />
        <Setter Property="BorderBrush" Value="{DynamicResource CheckBoxBorderBrushUncheckedPointerOver}" />
    </Style>
    <Style Selector="^ /template/ Border#NormalRectangle">
        <Setter Property="Background" Value="{DynamicResource CheckBoxCheckBackgroundFillUncheckedPointerOver}"/>
        <Setter Property="BorderBrush" Value="{DynamicResource CheckBoxCheckBackgroundStrokeUncheckedPointerOver}" />
    </Style>
    <Style Selector="^ /template/ ui|FontIcon#CheckGlyph">
        <Setter Property="Foreground" Value="{DynamicResource CheckBoxCheckGlyphForegroundUncheckedPointerOver}"/>
    </Style>
</Style>

This example from CheckBox could be condensed down to (following UWP’s Target)

<Style Selector="^:pointerover">
    <Setter Target="ContentPresenter.Foreground" Value="{DynamicResource CheckBoxForegroundUncheckedPointerOver}" />
    <Setter Target="Root.Background" Value="{DynamicResource CheckBoxBackgroundUncheckedPointerOver}" />
    <Setter Target="Root.BorderBrush" Value="{DynamicResource CheckBoxBorderBrushUncheckedPointerOver}" />
    <Setter Target="NormalRectangle.Background" Value="{DynamicResource CheckBoxCheckBackgroundFillUncheckedPointerOver}"/>
    <Setter Target="NormalRectangle.BorderBrush" Value="{DynamicResource CheckBoxCheckBackgroundStrokeUncheckedPointerOver}" />
    <Setter Target="CheckGlyph.Foreground" Value="{DynamicResource CheckBoxCheckGlyphForegroundUncheckedPointerOver}"/>
</Style>

[jmacato]

Yes I like this solution since it will also simplify setters in styles