如何在Windows Phone 7中检测UI元素的同时触摸

我是WP7的新手，我确信我错过了某些明显的东西。在下面的代码中，我创建了一堆矩形，然后在触摸时切换它们的颜色。麻烦的是，当我同时触摸两个矩形时，只有一个获得一个事件。我认为这是因为我使用鼠标事件，但我没有看到触摸事件挂钩。任何正确的方向指针将不胜感激。背后如何在Windows Phone 7中检测UI元素的同时触摸

相关XAML

 <Grid x:Name="LayoutRoot" Background="Transparent"> 
     <toolkit:WrapPanel x:Name="RectWrapPanel" Height="768" Width="480"/> 
    </Grid>

代码：

namespace colortouch 
{ 
    public partial class MainPage : PhoneApplicationPage 
    { 
     SolidColorBrush blueBrush = new SolidColorBrush() { Color = Colors.Blue }; 
     SolidColorBrush redBrush = new SolidColorBrush() { Color = Colors.Red }; 
     SolidColorBrush blackBrush = new SolidColorBrush() { Color = Colors.Black }; 

     // Constructor 
     public MainPage() 
     { 
      InitializeComponent(); 

      for (int i = 0; i < 126; i++) 
      { 
       Rectangle rect = new Rectangle(); 
       rect.Height = 50; 
       rect.Width = 50; 

       rect.Stroke = blackBrush; 
       rect.Fill = blueBrush; 

       //rect.MouseLeftButtonDown += new MouseButtonEventHandler(rect_MouseLeftButtonDown); 
       rect.MouseEnter += new MouseEventHandler(rect_MouseEnter); 
       Button b = new Button(); 

       RectWrapPanel.Children.Add(rect); 
      } 
     } 

     void rect_MouseEnter(object sender, MouseEventArgs e) 
     { 
      Rectangle rect = sender as Rectangle; 

      if (rect.Fill == blueBrush) 
       rect.Fill = redBrush; 
      else 
       rect.Fill = blueBrush; 
     } 
    } 
}

来源

2011-01-08 John