在WPF应用程序中编辑所有标签颜色

Question

I am trying to figure out, how to edit all label colors in my WPF App.
Hope I can get some opinions here.

Scenario

Goal

Enable Theming for End User

Question

How to edit alle labels at once, Where the Color is bound to the Custom Color Resource

Prerequisites

Custom Resource Color on all Labels

Example

<Label.Foreground>
                <SolidColorBrush Color="{DynamicResource CustomLabelColor}"/>
</Label.Foreground>

Answer 1

You have to use DynamicResource in XAML:

<Window.Resources>
   <SolidColorBrush x:Key="CustomLabelColor" />

    <Style TargetType="Label">
            <Setter Property="Foreground" Value="{DynamicResource CustomLabelColor}" />
    </Style>
    </Window.Resources>

    <StackPanel>
        <Label Content="fsdaf"></Label>
        <Label Content="fsdaf"></Label>
        <Label Content="fsdaf"></Label>
        <Label Content="fsdaf"></Label>
        <Label Content="fsdaf"></Label>
</StackPanel>

And set the color from code:

this.Resources["CustomLabelColor"] = new SolidColorBrush(Colors.Aqua);

Or to use Hexa:

this.Resources["CustomLabelColor"] = 
new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF00AAFF"));

Answer 2

<Style TargetType="Label">
        <Setter Property="Foreground" Value="{StaticResource CustomLabelColor}" />
   </Style>