c# - FlowDocument 内的段落边框显得模糊，SnapsToDevicePixels 和 UseLayoutRounding 均不起作用

Question

当我使用 BorderThickness 属性在 FlowDocumentScrollViewer 中的 FlowDocument 内的 Paragraph 元素上绘制边框时，边框有时模糊。

这是我的代码片段。

<Grid>
    <FlowDocumentScrollViewer>
        <FlowDocument>
            <Paragraph BorderBrush="Black" BorderThickness="0.5">This is a paragraph</Paragraph>
            <Paragraph BorderBrush="Black" BorderThickness="0.5">This is a paragraph</Paragraph>
            <Paragraph BorderBrush="Black" BorderThickness="0.5">This is a paragraph</Paragraph>
        </FlowDocument>
    </FlowDocumentScrollViewer>
</Grid>

我尝试将 SnapsToDevicePixels="True" 和 UseLayoutRounding="True" 放在 Grid 或 FlowDocumentScrollViewer (因为 Paragraph 本身不支持这些属性)，但什么也没有发生。

这个问题还存在吗？如果没有，我该如何解决？

Answer 1

<Grid RenderOptions.EdgeMode="Aliased">
        <FlowDocumentScrollViewer>
            <FlowDocument>
                <Paragraph Margin="2" BorderBrush="Black" BorderThickness=".5">This is a paragraph</Paragraph>
                <Paragraph Margin="2" BorderBrush="Black" BorderThickness=".5">This is a paragraph</Paragraph>
                <Paragraph Margin="2" BorderBrush="Black" BorderThickness=".5">This is a paragraph</Paragraph>
            </FlowDocument>
        </FlowDocumentScrollViewer>
    </Grid>