WPF，属性继承问题

Question

<Window x:Class="Using_Inherited_Dps.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
WindowStartupLocation="CenterScreen" 
Title="依赖项属性的继承" Height="400" Width="578" Foreground="Red">
    <StackPanel >
        <Label Content="熊俊" />
    </StackPanel>
</Window>
上面的Lable的字体没有继承Window的Red，不是红色，为什么呢？

Answer 1

<Style x:Key="LabelStyle1"
        TargetType="{x:Type Label}">
    <Setter Property="Foreground"
            Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" />
    <Setter Property="Background"
            Value="Transparent" />
    <Setter Property="Padding"
            Value="5" />
    <Setter Property="HorizontalContentAlignment"
            Value="Left" />
    <Setter Property="VerticalContentAlignment"
            Value="Top" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Label}">
                <Border BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        Background="{TemplateBinding Background}"
                        Padding="{TemplateBinding Padding}"
                        SnapsToDevicePixels="True">
                    <ContentPresenter ContentTemplate="{TemplateBinding ContentTemplate}"
                                        Content="{TemplateBinding Content}"
                                        ContentStringFormat="{TemplateBinding ContentStringFormat}"
                                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                        RecognizesAccessKey="True"
                                        SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsEnabled"
                                Value="False">
                        <Setter Property="Foreground"
                                Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
DynamicResource {x:Static SystemColors.ControlTextBrushKey}

Answer 2

<Window x:Class="WpfApplication2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525" Foreground="Red">
    <StackPanel >
        <Label Content="熊俊" />    <TextBlock Text="12334" />
    </StackPanel></Window>TextBlock 是有效果的哦MSDN上是这么写的
This property only affects a control whose template uses the Foreground property as a parameter. On other controls, this property has no impact.
所以对TextBlock可以起作用而CheckBox, Button一类的就不起作用。我们在使用Button的Foreground属性时，实际上也只是对Button内部的TextBlock的Foreground产生了作用，用Snoop查看Button的VisualTree可以发现
Button
  Chrome
    ContentPresenter
      TextBlock也就是Button的内容（字符串）实际上是在TextBlock中被显示出来，并且Foreground属性也是被应用到了TextBlock上。所以LZ还是一个一个设置吧～～～

Answer 3

如果你想用的话 TextBlock  也有lable的效果

Answer 4

我复制Lable的模板，并删除了Foreground属性的Setter，然后，把Window的Foreground属性设置为Red,结果Label还是没有继承Foreground...........

Answer 5

我复制Lable的模板，并删除了Foreground属性的Setter，然后，把Window的Foreground属性设置为Red,结果Label还是没有继承Foreground........... 

Answer 6

我复制Lable的模板，并删除了Foreground属性的Setter，然后，把Window的Foreground属性设置为Red,结果Label还是没有继承Foreground...........  

Answer 7

我复制Lable的模板，并删除了Foreground属性的Setter，然后，把Window的Foreground属性设置为Red,结果Label还是没有继承Foreground...........   有人知道是什么原因吗？ ？............ 

Answer 8

<TextBlock.Foreground>  
                    <LinearGradientBrush>   
                            <GradientStop Color="Green"></GradientStop>  
                            <GradientStop x:Name="gcc1"  Color="Green" Offset="0.3"></GradientStop>  
                            <GradientStop x:Name="gcc2" Color="Blue" Offset="0.3"></GradientStop>  
                            <GradientStop Color="Blue" Offset="1"></GradientStop>   
                    </LinearGradientBrush>  
                </TextBlock.Foreground>  
你看看这段代码，希望对你有帮助，这是设置的TextBlock的属性颜色，改成Lable就行了

Answer 9

 <StackPanel > 
        <Label Content="熊俊" Foreground="Red" /> 
    </StackPanel>