wpf - 触发时无法显示下划线

Question

我有以下样式，但是当鼠标悬停触发器为真时，文本上不显示下划线。

<Style x:Key="HyperlinkToggleButtonStyle" TargetType="ToggleButton">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="ToggleButton">
                <TextBlock x:Name="TextBlock">
                            <ContentPresenter Content="{TemplateBinding  Content}" ContentTemplate="{TemplateBinding  ContentTemplate}"/>
                </TextBlock>
            </ControlTemplate>
        </Setter.Value>
    </Setter>

    <Style.Triggers>
        <Trigger Property="IsMouseOver" Value="false">
            <Setter Property="Background" Value="{StaticResource StandardBackground}"/>
            <Setter Property="Foreground" Value="Black" />
            <Setter Property="FontSize" Value="12"/>
            <Setter Property="FontStyle" Value="Normal"/>
            <Setter Property="FontWeight" Value="Normal"/>                                         
        </Trigger>

        <Trigger Property="IsMouseOver" Value="true">
            <Setter Property="Background" Value="{StaticResource StandardBackground}"/>
            <Setter Property="Foreground" Value="{StaticResource StandardBlue}" />
            <Setter Property="Cursor" Value="Hand" />
            <Setter Property="FontSize" Value="12"/>
            <Setter Property="FontStyle" Value="Normal"/>
            <Setter Property="FontWeight" Value="Normal"/>
            <Setter Property="TextBlock.TextDecorations" Value="Underline"/>
        </Trigger>
    </Style.Triggers>
</Style>

Answer 1

这可能不是一个理想的解决方案，但您可以在控件模板中定义触发器。不要忘记使用 setter 上的 TargetName 属性引用您的 TextBlock。

    <Setter Property="Template">
        <Setter.Value>
           <ControlTemplate TargetType="ToggleButton">
              <TextBlock x:Name="TextBlock">
                        <ContentPresenter Content="{TemplateBinding  Content}" ContentTemplate="{TemplateBinding  ContentTemplate}"/>
              </TextBlock>
              <ControlTemplate.Triggers>
                 <Trigger Property="IsMouseOver" Value="true">
                    <Setter TargetName="TextBlock" Property="TextBlock.TextDecorations" Value="Underline"/>
                 </Trigger>
              </ControlTemplate.Triggers>
           </ControlTemplate>
        </Setter.Value>
     </Setter>