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，粘上来共享一下也来奉献一把, :P

//  *** 实现 ***

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Collections.Generic;

namespace DoubleClickTest
{
    public class DoubleClick
    {
        int Interval;
        Dictionary<UIElement, TimeSpan> ControlMgr = new Dictionary<UIElement, TimeSpan>();

        /// <summary>
        /// DoubleClickEvent
        /// </summary>
        public event EventHandler<MouseButtonEventArgs> DoubleClickEvent = null;

        /// <summary>
        /// Construct
        /// </summary>
        /// <param name="interval"></param>
        public DoubleClick(int interval = 200)
        {
            this.Interval = interval;
        }

        /// <summary>
        /// Attach
        /// </summary>
        /// <param name="control"></param>
        public void Attach(UIElement ctrl)
        {
            if (!IsExist(ctrl))
            {
                this.ControlMgr[ctrl] = new TimeSpan(0);
                ctrl.MouseLeftButtonDown += new MouseButtonEventHandler(control_MouseLeftButtonDown);
            }
        }

        /// <summary>
        /// Deatch
        /// </summary>
        /// <param name="control"></param>
        public void Deatch(UIElement ctrl)
        {
            if (IsExist(ctrl))
            {
                ctrl.MouseLeftButtonDown -= new MouseButtonEventHandler(control_MouseLeftButtonDown);
                this.ControlMgr.Remove(ctrl);
            }
        }

        void control_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            UIElement ctrl = sender as UIElement;
            if (ctrl != null)
            {
                TimeSpan now = new TimeSpan(DateTime.Now.Ticks);
                if ((now - ControlMgr[ctrl]).TotalMilliseconds <= Interval)
                {
                    if (DoubleClickEvent != null)
                    {
                        DoubleClickEvent(sender, e);
                    }
                }
                ControlMgr[ctrl] = now;
            }
        }

        bool IsExist(UIElement control)
        {
            TimeSpan result;
            return ControlMgr.TryGetValue(control, out result);
        }
    }
}

 

// *** 演示 ***

<UserControl x:Class="DoubleClickTest.MainPage"
    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:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot" Background="White">
        <Ellipse Height="68" HorizontalAlignment="Left" Margin="35,23,0,0" Name="ellipse1" Stroke="Black" StrokeThickness="20" VerticalAlignment="Top" Width="102" />
        <TextBlock Height="46" HorizontalAlignment="Left" Margin="35,219,0,0" Name="textBlock1" Text="TextBlock" FontSize="22"  VerticalAlignment="Top" Width="141" />
        <Rectangle Height="64" HorizontalAlignment="Left" Margin="35,125,0,0" Name="rectangle1" Stroke="Black" StrokeThickness="20" VerticalAlignment="Top" Width="122" />
    </Grid>
</UserControl>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;


namespace DoubleClickTest
{
    public partial class MainPage : UserControl
    {
        /// <summary>
        /// DoubleClick object
        /// </summary>
        DoubleClick DoubleClickHandle = new DoubleClick();

        public MainPage()
        {
            InitializeComponent();

            // 注册控件的双击事件
            DoubleClickHandle.Attach(textBlock1);
            DoubleClickHandle.Attach(ellipse1);
            DoubleClickHandle.Attach(rectangle1);

            // 双击事件
            DoubleClickHandle.DoubleClickEvent += (s, e) =>
            {
                MessageBox.Show(s.GetType().FullName);
            };
        }
    }
}

第一次写在博客园写东西，支持一下！:D