c# - XAML 样式属性未被继承

Question

我为指向按钮的超链接制作了一个简单的样式:

<Style x:Key="Hyperlink" TargetType="{x:Type Button}">
    <Setter Property="Background" Value="Transparent" />
    <Setter Property="BorderThickness" Value="0" />
    <Setter Property="Foreground" Value="{StaticResource ForegroundDarkBrush}" />

    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Button}">
                <TextBlock x:Name="innerText" Text="{TemplateBinding Content}" />

                <ControlTemplate.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter Property="Foreground" Value="{StaticResource AppDarkBlueBrush}" />
                        <Setter TargetName="innerText" Property="TextDecorations" Value="Underline" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

我的问题是，当应用于设置了一些属性(如 FontSize、FontWeight、FontFamily)的按钮控件时，它们只是忽略且不起作用:

<Button
    Command="{Binding OpenCommand}"
    Content="Open"
    FontSize="20"
    Style="{StaticResource Hyperlink}" />

如何让我的样式模板中的 TextBlock 继承此类属性？

编辑

忘了我提到的像 FontSize 这样的属性实际上确实有效但只在设计模式下。

Answer 1

您可以表明您希望文本 block “继承”Button 的某些属性，如下所示:

<Style x:Key="Hyperlink" TargetType="{x:Type Button}">
    <Setter Property="Background" Value="Transparent" />
    <Setter Property="BorderThickness" Value="0" />
    <Setter Property="Foreground" Value="{StaticResource ForegroundDarkBrush}" />

    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Button}">
                <TextBlock 
                  x:Name="innerText" 
                  Text="{TemplateBinding Content}" 
                  FontSize={TemplateBinding FontSize}
                  FontWeight={TemplateBinding FontWeight}
                  FontFamily={TemplateBinding FontFamily}
                  />

                <ControlTemplate.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter Property="Foreground" Value="{StaticResource     AppDarkBlueBrush}" />
                        <Setter TargetName="innerText" Property="TextDecorations" Value="Underline" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>