如何更改 WPF TextBlock 中的 TextDecoration 颜色？

Question

我正在以这种方式更改 TextDecoration 的颜色：

<Grid Background="{x:Null}"
      Margin="10,0,10,0">
    <TextBlock Text="{Binding Value}"
               VerticalAlignment="Center"
               HorizontalAlignment="Center"
               Style="{StaticResource SWMRegularTextBlockStyle}"
               Margin="0"
               FontSize="{DynamicResource RegularFontSize}"
               x:Name="tb" />
        <Line VerticalAlignment="Center"
              HorizontalAlignment="Center"
              Visibility="{Binding InStock, Converter={StaticResource ReverseBooleanToVisiblity}}"
              Stroke="Red"
              Margin="0"
              StrokeThickness="2"
              X1="1"
              Stretch="Fill"
              Width="{Binding ActualWidth, ElementName=tb, UpdateSourceTrigger=PropertyChanged}" />
</Grid>

但是当 Text 有两行时它失败了。请帮我更改 TextDecoration 的颜色。提前致谢。

注意：我想要 TextBlock 不同颜色的前景和删除线。

Answer 1

您遇到的问题是您在文本上覆盖了一条线。当文本换行时，您需要创建另一行，这并不容易。

您可以通过根本不使用线条来解决这个问题，而是在后面的代码中为删除线的 TextDecoration 使用特定的笔。

Answer found here

    private void WindowLoaded(object sender, EventArgs e)
    {
        // Fill the overline decoration with a solid color brush.
        TextDecorationCollection myCollection = new TextDecorationCollection();
        TextDecoration myStrikeThrough = new TextDecoration();
        myStrikeThrough.Location = TextDecorationLocation.Strikethrough;

        // Set the solid color brush.
        myStrikeThrough.Pen = new Pen(Brushes.Red, 2);
        myStrikeThrough.PenThicknessUnit = TextDecorationUnit.FontRecommended;

        // Set the underline decoration to the text block.
        myCollection.Add(myStrikeThrough);
        tb.TextDecorations = myCollection;
    }

然后简化您的 XAML。删除 Line 控件，并将 Loaded="WindowLoaded" 添加到您的 Window

Answer 2

我想这就是你要找的。

<TextBlock Text="{Binding Value}" VerticalAlignment="Center" HorizontalAlignment="Center" Style="{StaticResource  SWMRegularTextBlockStyle}" Margin="0" FontSize="{DynamicResource RegularFontSize}" x:Name="tb" >
   <TextBlock.TextDecorations>
        <TextDecoration Location="Strikethrough">
            <TextDecoration.Pen>
                <Pen Brush="Red" />
            </TextDecoration.Pen>
        </TextDecoration>
    </TextBlock.TextDecorations>
</TextBlock>

如何更改 WPF TextBlock 中的 TextDecoration 颜色？

How to change TextDecoration color in WPF TextBlock?

c#

wpf

textblock

text-decorations