WPF SDK研究 Intro(2) QuickStart2

QuickStart2
    This sample shows how to use a DockPanel element to arrange three Button in a vertical stack.
    区别于上一个Sample，这个例子在StackPanel里，居左对齐，垂直排列3个按钮。

<StackPanel 
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <Button HorizontalAlignment="Left"
          Width="100"
          Margin="10,10,10,10">Button 1</Button>         
  <Button HorizontalAlignment="Left"
          Width="100"
          Margin="10,10,10,10">Button 2</Button>
  <Button HorizontalAlignment="Left"
          Width="100"
          Margin="10,10,10,10">Button 3</Button>    
</StackPanel>