WPF : Rounded-Corners Images

Question

<Page
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Background="Black">
    <!-- Rounded yellow border -->
    <Border BorderThickness="3" BorderBrush="Yellow" CornerRadius="10" Padding="2"
        HorizontalAlignment="Center" VerticalAlignment="Center">
      <Grid>
         <!-- Rounded mask (stretches to fill Grid) -->
         <Border Name="mask" Background="White" CornerRadius="7"/>
         <!-- Main content container -->
         <StackPanel>
             <!-- Use a VisualBrush of 'mask' as the opacity mask -->
             <StackPanel.OpacityMask>
                 <VisualBrush Visual="{Binding ElementName=mask}"/>
             </StackPanel.OpacityMask>
             <!-- Any content -->
             <Image Source="http://chriscavanagh.files.wordpress.com/2006/12/chriss-blog-banner.jpg"/>
             <Rectangle Height="50" Fill="Red"/>
             <Rectangle Height="50" Fill="White"/>
             <Rectangle Height="50" Fill="Blue"/>
         </StackPanel>
      </Grid>
    </Border>
</Page>

此 XAML 来自 WPF – Easy rounded corners for anything但它对我不起作用 =(

<Border Canvas.Left="55"
        Canvas.Top="30"
        Width="100"
        Height="Auto"
        Margin="12,12,8,0"
        VerticalAlignment="Top"
        BorderBrush="#FF3B5998"
        BorderThickness=".5"
        CornerRadius="18">
    <Border.Effect>
        <DropShadowEffect BlurRadius="5"
                          Opacity=".5"
                          ShadowDepth="3" />
    </Border.Effect>
    <Border Name="ReceiverColor"
            BorderBrush="#FF96B2E4"
            BorderThickness="6"
            CornerRadius="15">
        <Border Name="Mask"
                BorderBrush="#FF3B5998"
                BorderThickness=".5"
                CornerRadius="13">
                <StackPanel>
                    <StackPanel.OpacityMask>
                        <VisualBrush Visual="{Binding ElementName=Mask}" />
                    </StackPanel.OpacityMask>
                    <Image Name="Receiver" />
                </StackPanel>
        </Border>
    </Border>
</Border>

--- 编辑 ---
我使边框大小自动并将图像源更改为链接中的图像
当窗口加载的边框大小变为图像大小但图像未显示时!!!

Answer 1

您可以定义一个 <Border/>元素并设置其 <Border.Background/>属性为 <ImageBrush/> , 设置边框 CornerRadius属性(property)和你
都设置好了!

<Border CornerRadius="8,0,8,0">
    <Border.Background>
        <ImageBrush Stretch="Fill" ImageSource="ImageSource"/>
    </Border.Background>
</Border>