wpf 能否设置父控件透明 子控件不透明

Question

<Grid Grid.Row="0" Background="Gray" Opacity="0.5">
   <Button Width="80"/>         
</Grid>

能否让grid透明，而不影响button，即内部的子控件另外设置透明度,发现在button上重新设置Opacity="1"，仍然是透明的，求解.

Ths

Answer 1

Grid本身就是透明的，把Background="Gray" 去掉，或者Background="Transparent"

Answer 2

你好，

我们可以使用笔刷，这样就不会影响到Grid内的控件透明度：

<Window.Resources>
                <SolidColorBrush Color="Gray" Opacity=".5" x:Key="OpacityBrush"/>
</Window.Resources>
    
<Grid Grid.Row="0" Background="{StaticResource OpacityBrush}">
        <Button Width="80" Content="Button" />
</Grid>

Screenshot:

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