WPF窗口阴影效果 [英] WPF window shadow effect

问题描述

我是WPF技术的新手。我在WPF中有以下窗口声明：

I am new to WPF technology. I have the following window declaration in WPF:

<Window x:Class="CustomWindows.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="480" Width="640" ScrollViewer.VerticalScrollBarVisibility="Disabled" WindowStyle="None" AllowsTransparency="True">
    <Window.Effect>
        <DropShadowEffect BlurRadius="15" Direction="-90" RenderingBias="Quality" ShadowDepth="2"/>
    </Window.Effect>
    <Grid>

    </Grid>
</Window>

但是当我运行它时，没有出现阴影。我该怎么办，或者误解在哪里？

But when I run it, the shadow does not appear. What can I do, or where is the misstake?

推荐答案

DropShadowEffect 不能应用于 Window 。相反，如果要覆盖默认的窗口外观，则必须将效果应用于窗口中包含的其他元素：

DropShadowEffect cannot be applied to a Window. Instead, if you want to override the default window appearance, you have to apply the effect to some other element contained in the window:

<Window x:Class="WpfApplication2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525" WindowStyle="None" AllowsTransparency="True" Background="Transparent">
    <Grid Margin="20" Background="Red">
        <Grid.Effect>
            <DropShadowEffect BlurRadius="15" Direction="-90" RenderingBias="Quality" ShadowDepth="2"/>
        </Grid.Effect>
        ...

    </Grid>
</Window>

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