How to Use the Radio Button

<UserControl x:Class="RadioButtons.Page"
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300">
<Canvas>
<RadioButton Canvas.Left="100" Canvas.Top="10" Content="Option 10" GroupName="group2" />
<RadioButton Canvas.Left="100" Canvas.Top="30" Content="Option 20" GroupName="group2" />
</Canvas>
</UserControl>