Silverlight实用窍门系列：11.Silverlight中为自定义控件添加鼠标双击属性，Silverlight模拟鼠标双击【附带源码实例】

using System;
using System.Threading;
using System.Windows;
using System.Windows.Input;
using System.Windows.Threading;

namespace SLDoubleClick
{
public delegate void MouseLeftDoubleDownEventHandler( object sender, MouseButtonEventArgs e);

/// <summary>
/// 定义了双击事件的类
/// </summary>
public class DoubleClick
{
/// <summary>
/// 双击事件定时器
/// </summary>
private DispatcherTimer doubleClickTimer;

/// <summary>
/// 是否单击
/// </summary>
private bool isOnceClick;

/// <summary>
/// 双击事件
/// </summary>
public MouseLeftDoubleDownEventHandler mouseLeftDoubleDown;

/// <summary>
/// 拥有双击事件的UI
/// </summary>
private UIElement owner;

/// <summary>
/// 实例化DoubleClick
/// </summary>
/// <param name="owner"> 具有双击事件的UI </param>
public DoubleClick(UIElement owner)
{
this .owner = owner;
this .bindEvent();
}

/// <summary>
/// 绑定事件
/// </summary>
private void bindEvent()
{
// 初始化时设置控件左键单击时触发的鼠标点击事件
this .owner.MouseLeftButtonDown += ( new MouseButtonEventHandler( this .owner_MouseLeftButtonDown));
DispatcherTimer timer = new DispatcherTimer();
// 设置单击事件时间间隔
timer.Interval = ( new TimeSpan( 0 , 0 , 0 , 0 , 200 ));
this .doubleClickTimer = timer;
// 初始化时设置在200毫秒之内部调用此事件，如果超过200毫秒还没有得到第二次点击，则调用此事件
this .doubleClickTimer.Tick += ( new EventHandler( this .doubleClickTimer_Tick));
}
/// <summary>
/// 此事件在超过200毫秒未接收到第二次点击时触发。确定本次是单击事件。
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void doubleClickTimer_Tick( object sender, EventArgs e)
{
this .isOnceClick = false ;
this .doubleClickTimer.Stop();
}

private void owner_MouseLeftButtonDown( object sender, MouseButtonEventArgs e)
{
if ( ! this .isOnceClick)
{ // 点击第一次之后开始计时，并且设置此时为单击一次
this .isOnceClick = true ;
this .doubleClickTimer.Start();
}
else
{ // 在200毫秒的时间间隔之内并且触发doubleClickTimer_Tick事件。则执行鼠标左键双击事件。
this .mouseLeftDoubleDown(sender, e);
}
}
}
}

private DoubleClick MouseDoubleClick;
private bool isDoubleClick;
/// <summary>
/// 是否允许双击
/// </summary>
public bool IsDoubleClick
{
get { return isDoubleClick; }
set {
isDoubleClick = value;
if (isDoubleClick == true )
{
MouseDoubleClick = new DoubleClick( this );
this .MouseDoubleClick.mouseLeftDoubleDown += new MouseLeftDoubleDownEventHandler(full_mouseLeftDoubleDown);
this .Cursor = Cursors.Hand;
}
else
{

}
}
}
private void full_mouseLeftDoubleDown( object sender, MouseButtonEventArgs e)
{
MessageBox.Show( " 你双击了此矩形框 " );
}

Uc uc = new Uc();
uc.IsDoubleClick = true ;
this .LayoutRoot.Children.Add(uc);