<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="Microsoft.Samples.Graphics.RectangleExample" WindowTitle="Rectangle Example"> <Canvas Width="120" Height="200" > <Rectangle Width="100" Height="50" Fill="Blue" Stroke="Black" StrokeThickness="4" RadiusX="20" RadiusY="20" Canvas.Left="10" Canvas.Top="100"/> </Canvas> </Page>