<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="Example"> <Canvas> <TextBlock Margin="5,5,0,0">Corner radius of 10 (X) and 25 (Y).</TextBlock> <Rectangle Fill="Yellow" Stroke="Blue" RadiusX="10" RadiusY="25" Width="100" Height="60" Margin="5" HorizontalAlignment="Left"></Rectangle> </Canvas> </Page>