Canvas.Left와 Canvas.Top

[FrmCanvas.xaml]

<UserControl x:Class="RiaCanvasClip.FrmCanvas"

    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:DesignHeight="250" d:DesignWidth="400">

    <Canvas x:Name="silCanvas" Background="Silver"

            Width="200" Height="200">

        <Rectangle Canvas.Left="0" Canvas.Top="0" Fill="Red" Width="50" Height="50" />

        <Rectangle Canvas.Left="20" Canvas.Top="20" Fill="Green" Width="50" Height="50" />

        <Rectangle Canvas.Left="40" Canvas.Top="40" Fill="Blue" Width="50" Height="50" />

    </Canvas>   

</UserControl>