Grid cell stretch mode
<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 ShowGridLines="True" Margin="5" Background="White"> <Grid.ColumnDefinitions> <ColumnDefinition></ColumnDefinition> <ColumnDefinition></ColumnDefinition> <ColumnDefinition></ColumnDefinition> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition></RowDefinition> <RowDefinition Height="Auto"></RowDefinition> </Grid.RowDefinitions> <Ellipse Fill="Yellow" Stroke="Blue"></Ellipse> <Ellipse Fill="Yellow" Stroke="Blue" Grid.Column="1" Stretch="Uniform"></Ellipse> <Ellipse Fill="Yellow" Stroke="Blue" Grid.Column="2" Stretch="UniformToFill"></Ellipse> <TextBlock Grid.Row="1" TextAlignment="Center">Fill</TextBlock> <TextBlock Grid.Row="1" Grid.Column="1" TextAlignment="Center">Uniform</TextBlock> <TextBlock Grid.Row="1" Grid.Column="2" TextAlignment="Center">UniformToFill</TextBlock> </Grid> </UserControl>