代码改变世界

wpf学习笔记---Canvas

2007-03-04 16:59  Clingingboy  阅读(8317)  评论(1编辑  收藏  举报
        继续发. Canvas为容器控件,用于定位

1.基本应用

  <Border HorizontalAlignment="Left" VerticalAlignment="Top" BorderBrush="Black" BorderThickness="2">
    
<Canvas Background="LightBlue" Width="400" Height="400">
      
<Button Canvas.Top="50">Canvas.Top="50"</Button>
      
<Button Canvas.Bottom="50">Canvas.Bottom="50"</Button>
      
<Button Canvas.Left="50">Canvas.Left="50"</Button>
      
<Button Canvas.Right="50">Canvas.Right="50"</Button>
    
</Canvas>
  
</Border>    



2.当同时设置left和right,top和bottom,以left和top为准

3.重叠深度设置

<Canvas>
    
<Rectangle Canvas.ZIndex="3" Width="100" Height="100" Canvas.Top="100" Canvas.Left="100" Fill="blue"/>
    
<Rectangle Canvas.ZIndex="1" Width="100" Height="100" Canvas.Top="150" Canvas.Left="150" Fill="yellow"/>
    
<Rectangle Canvas.ZIndex="2" Width="100" Height="100" Canvas.Top="200" Canvas.Left="200" Fill="green"/>

    
<!-- Reverse the order to illustrate z-index property -->

    
<Rectangle Canvas.ZIndex="1" Width="100" Height="100" Canvas.Top="300" Canvas.Left="200" Fill="green"/>
    
<Rectangle Canvas.ZIndex="3" Width="100" Height="100" Canvas.Top="350" Canvas.Left="150" Fill="yellow"/>
    
<Rectangle Canvas.ZIndex="2" Width="100" Height="100" Canvas.Top="400" Canvas.Left="100" Fill="blue"/>
  
</Canvas>