Star sizing Grid
<UserControl x:Class='SilverlightApplication3.MainPage' 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:DesignWidth='640' d:DesignHeight='480'> <Grid x:Name="LayoutRoot" Background="White"> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> <ColumnDefinition Width="2*"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition/> </Grid.RowDefinitions> <Border Grid.Row="0" Grid.Column="0" Background="Beige"> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <TextBlock HorizontalAlignment="Center" Text="Row = 0"/> <TextBlock HorizontalAlignment="Center" Text="Column = 0"/> </StackPanel> </Border> <Border Grid.Row="0" Grid.Column="1" Background="BurlyWood"> <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Text="Row = 0, Column = 1"/> </Border> </Grid> </UserControl>