ソースコード
App.xaml
<Application x:Class="WpfApplication4.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" StartupUri="MainWindow.xaml"> </Application>
MainWindow.xaml
<Window x:Class="WpfApplication4.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="300" Width="500"> <Grid IsSharedSizeScope="true"> <Grid.RowDefinitions> <RowDefinition /> <RowDefinition /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" SharedSizeGroup="a" /> <ColumnDefinition Width="Auto" SharedSizeGroup="a" /> </Grid.ColumnDefinitions> <Ellipse Grid.Row="0" Grid.Column="0" Fill="Aqua" Width="100" /> <Ellipse Grid.Row="0" Grid.Column="1" Fill="Aqua" /> <Ellipse Grid.Row="1" Grid.Column="0" Fill="Aqua" /> <Ellipse Grid.Row="1" Grid.Column="1" Fill="Aqua" /> </Grid> </Window>