Silverlight里实现DoubleClick

最近在使用SL的时候发现里面没有支持双击事件，虽然可以写代码实现，但是每次都要写一段处理代码很麻烦，于是把它封装成了一个类方便调用，粘上来共享一下

1. //  *** 实现 ***  
2. using System;   
3. using System.Net;   
4.  using System.Windows;   
5.  using System.Windows.Controls;   
6.  using System.Windows.Documents;   
7.  using System.Windows.Ink;   
8.  using System.Windows.Input;   
9.  using System.Windows.Media;   
10.  using System.Windows.Media.Animation;   
11.  using System.Windows.Shapes;   
12.  using System.Collections.Generic;   
13.      
14.  
15.  namespace DoubleClickTest   
16.  {   
17.      public class DoubleClick   
18.      {   
19.          int Interval;   
20.         Dictionary<UIElement, TimeSpan> ControlMgr = new Dictionary<UIElement, TimeSpan>();   
21.      
22.          /// <summary>  
23.          /// DoubleClickEvent   
24.          /// </summary>   
25.          public event EventHandler<MouseButtonEventArgs> DoubleClickEvent = null;   
26.      
27.          /// <summary>   
28.          /// Construct   
29.          /// </summary>   
30.          /// <param name="interval"></param>   
31.          public DoubleClick(int interval = 200)   
32.          {   
33.              this.Interval = interval;   
34.          }   
35.      
36.          /// <summary>   
37.          /// Attach   
38.          /// </summary>   
39.          /// <param name="control"></param>   
40.          public void Attach(UIElement ctrl)   
41.          {   
42.              if (!IsExist(ctrl))   
43.              {   
44.                  this.ControlMgr[ctrl] = new TimeSpan(0);   
45.                  ctrl.MouseLeftButtonDown += new MouseButtonEventHandler(control_MouseLeftButtonDown);   
46.              }   
47.          }   
48.      
49.          /// <summary>   
50.          /// Deatch   
51.          /// </summary>   
52.          /// <param name="control"></param>   
53.          public void Deatch(UIElement ctrl)   
54.          {   
55.              if (IsExist(ctrl))   
56.              {   
57.                  ctrl.MouseLeftButtonDown -= new MouseButtonEventHandler(control_MouseLeftButtonDown);   
58.                  this.ControlMgr.Remove(ctrl);   
59.              }   
60.          }   
61.      
62.          void control_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)   
63.          {   
64.              UIElement ctrl = sender as UIElement;   
65.              if (ctrl != null)   
66.              {   
67.                  TimeSpan now = new TimeSpan(DateTime.Now.Ticks);   
68.                  if ((now - ControlMgr[ctrl]).TotalMilliseconds <= Interval)   
69.                  {   
70.                      if (DoubleClickEvent != null)   
71.                      {   
72.                          DoubleClickEvent(sender, e);   
73.                      }   
74.                  }   
75.                  ControlMgr[ctrl] = now;   
76.              }   
77.         }   
78.  
79.     
80.          bool IsExist(UIElement control)   
81.          {   
82.             TimeSpan result;   
83.              return ControlMgr.TryGetValue(control, out result);   
84.          }   
85.      }   
86. }  

演示

1. <UserControl x:Class="DoubleClickTest.MainPage" 
2.     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
3.     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
4.     xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
5.     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
6.     mc:Ignorable="d" 
7.     d:DesignHeight="300" d:DesignWidth="400"> 
8.  
9.     <Grid x:Name="LayoutRoot" Background="White"> 
10.         <Ellipse Height="68" HorizontalAlignment="Left" Margin="35,23,0,0" Name="ellipse1" Stroke="Black" StrokeThickness="20" VerticalAlignment="Top" Width="102" /> 
11.         <TextBlock Height="46" HorizontalAlignment="Left" Margin="35,219,0,0" Name="textBlock1" Text="TextBlock" FontSize="22"  VerticalAlignment="Top" Width="141" /> 
12.         <Rectangle Height="64" HorizontalAlignment="Left" Margin="35,125,0,0" Name="rectangle1" Stroke="Black" StrokeThickness="20" VerticalAlignment="Top" Width="122" /> 
13.     </Grid> 
14. </UserControl> 

1. using System; 
2. using System.Collections.Generic; 
3. using System.Linq; 
4. using System.Net; 
5. using System.Windows; 
6. using System.Windows.Controls; 
7. using System.Windows.Documents; 
8. using System.Windows.Input; 
9. using System.Windows.Media; 
10. using System.Windows.Media.Animation; 
11. using System.Windows.Shapes; 
12.  
13.  
14. namespace DoubleClickTest 
15. { 
16.     public partial class MainPage : UserControl 
17.     { 
18.         /// <summary> 
19.         /// DoubleClick object 
20.         /// </summary> 
21.         DoubleClick DoubleClickHandle = new DoubleClick(); 
22.  
23.         public MainPage() 
24.         { 
25.             InitializeComponent(); 
26.  
27.             // 注册控件的双击事件 
28.             DoubleClickHandle.Attach(textBlock1); 
29.             DoubleClickHandle.Attach(ellipse1); 
30.             DoubleClickHandle.Attach(rectangle1); 
31.  
32.             // 双击事件 
33.             DoubleClickHandle.DoubleClickEvent += (s, e) => 
34.             { 
35.                 MessageBox.Show(s.GetType().FullName); 
36.             }; 
37.         } 
38.     } 
39. }