問題結合分組框中的前景屬性HeaderTemplate中

Question

我定義了我的GroupBoxes的頭一個DataTemplate：

<Style x:Key="GroupBoxHeaderStyle" TargetType="{x:Type GroupBox}"> 
     <Setter Property="Foreground" Value="White"></Setter> 
     <Setter Property="HeaderTemplate"> 
      <Setter.Value> 
       <DataTemplate>      
        <TextBlock Text="{Binding}" Foreground="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Foreground}" 
           FontSize="18" FontFamily="Global User Interface"/> 
       </DataTemplate> 
      </Setter.Value> 
     </Setter> 
    </Style> 

然而，綁定完成的前景似乎並沒有工作。我的groupBoxes的標題始終是黑色的。我究竟做錯了什麼？

這是我如何定義分組框中：

<GroupBox Header="Views" Margin="1" Foreground="White" 
      Style="{StaticResource GroupBoxHeaderStyle}"> 
      ... 

Answer 1

... 
<TextBlock Text="{Binding}" Foreground="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type GroupBox}}, Path=Foreground}" 
      FontSize="18" FontFamily="Global User Interface"/> 
...