ElementHost DropShadowEffect

如何解决ElementHost DropShadowEffect

| 我正在使用ElementHost在WinForms控件中托管WPF用户控件。我的WPF控件具有DropShadowEffect，但未在屏幕上显示。 WPF控件是扁平的。我需要做什么？这是我的代码：

public WinFormsUserControl3()
{
            InitializeComponent();
            elementHost1 = new ElementHost() { Child = new MyWPFUserControl(),AutoSize=true};
            Controls.Add(elementHost1);
}

MyWPFUserControl xaml：

<UserControl x:Class=\"WindowsFormsApplication1.MyWPFUserControl\"
    xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\"
    xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\"
    xmlns:local=\"clr-namespace:WindowsFormsApplication1\"
    Height=\"113\" Width=\"107\" Padding=\"10\" Background=\"Red\"  >
    <UserControl.Effect>
        <DropShadowEffect></DropShadowEffect>
    </UserControl.Effect>
    <StackPanel Background=\"Yellow\">
        <Button Content=\"Button 1\" Padding=\"5\" Margin=\"5\" />
        <Button x:Name=\"Button2\" Padding=\"5\" Margin=\"5\" Content=\"Button 2\" />
    </StackPanel>
</UserControl>

    

解决方法

这是ѭ2X的示例XAML代码

<UserControl x:Class=\'SilverlightApplication3.MainPage\'
    xmlns=\'http://schemas.microsoft.com/winfx/2006/xaml/presentation\' 
    xmlns:x=\'http://schemas.microsoft.com/winfx/2006/xaml\'
    xmlns:d=\'http://schemas.microsoft.com/expression/blend/2008\' 
    xmlns:mc=\'http://schemas.openxmlformats.org/markup-compatibility/2006\' 
    mc:Ignorable=\'d\' 
    d:DesignWidth=\'640\' 
    d:DesignHeight=\'480\'>
    <Canvas Height=\"Auto\" Width=\"Auto\" Background=\"White\">
        <TextBlock Height=\"49\" Width=\"814\" Canvas.Left=\"22\" Canvas.Top=\"18\" 
                   Text=\"this is a test\" TextWrapping=\"Wrap\" 
                   d:LayoutOverrides=\"Height\" FontSize=\"30\" FontFamily=\"Arial\">
      <TextBlock.Effect>
        <DropShadowEffect/>
      </TextBlock.Effect>
        </TextBlock>
    </Canvas>
</UserControl>