Question

我正在以这种方式改变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有两行时它会失败。请帮我改变TextDecoration的颜色。提前谢谢。

注意：我希望TextBlock前景和透视线有不同的颜色。

Answer 1

我认为这就是你要找的东西。

<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>
</TextBlock >

Answer 2

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

你可以通过不使用该行来解决这个问题，而是使用特定的笔来代替后面代码中删除线的TextDecoration。

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

如何在WPF TextBlock中更改TextDecoration颜色？

2 个答案: