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'>
VerticalAlignment="Top">
StackPanel1
Button 1
Button 2
Button 3
ColumnDefinition.Width="Auto"
StackPanel.HorizontalAlignment="Left"
StackPanel.VerticalAlignment="Top"
StackPanel.Orientation="Vertical"
Button.Margin="0,10,0,10"