C# 如何使用数据绑定处理事件双击？

我有一个项目，我想在

ShapeDesigner.xaml

中显示一个形状到

main window.xaml中的
Grid
当我双击
shapetouli.xaml
按钮时，我该怎么做呢。非常感谢你。
这是.xaml代码

ShapeDesigner.xaml

<Canvas x:Name="Canvas">
    <!-- Draw circle-->
    <ContentControl x:Name="Circle"
        Width="366" Height="312" Canvas.Top="50" Canvas.Left="50"
        MinWidth="50" MaxWidth="200" MinHeight="50" MaxHeight="200"
                Template="{StaticResource DesignShape}" RenderTransformOrigin="3.005,2.555">
        <Ellipse Fill="Red"
                 IsHitTestVisible="False"></Ellipse>
        
    </ContentControl>
</Canvas>

<Grid Background="#FFBCE6FF" >
    // I want to display Canvas in ShapeDesigner in here when double-clicked button in ShapeToolUI
</Grid>

<Grid Background="White">
    <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Visible" >
        <StackPanel Background="#FFBCE6FF">
            <Button  MouseDoubleClick="DisplayRhombus"
                Margin="10,40,10,0" Height="91" Width="100" BorderBrush="#FFBCE6FF" Foreground="#FFBCE6FF">
                <Button.Background>
                    <ImageBrush ImageSource="rhombus.png"/>
                </Button.Background>
            </Button>
</Grid>




main window.xaml

<Canvas x:Name="Canvas">
    <!-- Draw circle-->
    <ContentControl x:Name="Circle"
        Width="366" Height="312" Canvas.Top="50" Canvas.Left="50"
        MinWidth="50" MaxWidth="200" MinHeight="50" MaxHeight="200"
                Template="{StaticResource DesignShape}" RenderTransformOrigin="3.005,2.555">
        <Ellipse Fill="Red"
                 IsHitTestVisible="False"></Ellipse>
        
    </ContentControl>
</Canvas>

<Grid Background="#FFBCE6FF" >
    // I want to display Canvas in ShapeDesigner in here when double-clicked button in ShapeToolUI
</Grid>

<Grid Background="White">
    <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Visible" >
        <StackPanel Background="#FFBCE6FF">
            <Button  MouseDoubleClick="DisplayRhombus"
                Margin="10,40,10,0" Height="91" Width="100" BorderBrush="#FFBCE6FF" Foreground="#FFBCE6FF">
                <Button.Background>
                    <ImageBrush ImageSource="rhombus.png"/>
                </Button.Background>
            </Button>
</Grid>



//我想在这里双击ShapeTooli中的按钮时在ShapeDesigner中显示画布

shapetouli.xaml

<Canvas x:Name="Canvas">
    <!-- Draw circle-->
    <ContentControl x:Name="Circle"
        Width="366" Height="312" Canvas.Top="50" Canvas.Left="50"
        MinWidth="50" MaxWidth="200" MinHeight="50" MaxHeight="200"
                Template="{StaticResource DesignShape}" RenderTransformOrigin="3.005,2.555">
        <Ellipse Fill="Red"
                 IsHitTestVisible="False"></Ellipse>
        
    </ContentControl>
</Canvas>

<Grid Background="#FFBCE6FF" >
    // I want to display Canvas in ShapeDesigner in here when double-clicked button in ShapeToolUI
</Grid>

<Grid Background="White">
    <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Visible" >
        <StackPanel Background="#FFBCE6FF">
            <Button  MouseDoubleClick="DisplayRhombus"
                Margin="10,40,10,0" Height="91" Width="100" BorderBrush="#FFBCE6FF" Foreground="#FFBCE6FF">
                <Button.Background>
                    <ImageBrush ImageSource="rhombus.png"/>
                </Button.Background>
            </Button>
</Grid>




非常感谢您的“显示菱形”定义在哪里？
如果没有，则需要首先定义。并从该函数内部调用“Circle”。
为什么有一个没有命令或事件处理程序的按钮？按钮被设计成当你点击时做一些事情。