让Winform控件同时支持单击和双击事件

如果给一个控件同时添加了单击事件和双击事件，那么在触发双击事件前必然会触发单击事件，为了解决这个问题，在msdn上找到了微软提供的解决方法：http://msdn.microsoft.com/en-us/library/ms171543(VS.80).aspx。

　　其主要思想是：单击鼠标时，启动一个Timer，Timer起计时器作用，Timer运行时间超过了一次双击鼠标所用的最长时间，而第二次鼠标点击事件还没有发生时，就认为是单击，反之，如果在一个鼠标双击所用时间的最长时间内，又一次触发了鼠标点击事件，则可视为双击。

　　using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace DoubleClick
{
public partial class Form1 : Form
{
private bool _isFirstClick = true;
private bool _isDoubleClick = false;
private int _milliseconds = 0;
private Timer _doubleClickTimer;
private Rectangle _doubleRec;

public Form1()
{
InitializeComponent();
this.button1.MouseDown += new MouseEventHandler(button1_MouseDown);
_doubleClickTimer = new Timer();
_doubleClickTimer.Interval = 100;
_doubleClickTimer.Tick += new EventHandler(_doubleClickTimer_Tick);
}

//_doubleClickTimer的Tick事件
private void _doubleClickTimer_Tick(object sender, EventArgs e)
{
_milliseconds += 100;
if (_milliseconds >= SystemInformation.DoubleClickTime)
{
_doubleClickTimer.Stop();
if (_isDoubleClick)
{
MessageBox.Show("Double Click");
}
else
{
MessageBox.Show("Single Click");
}
_isDoubleClick = false;
_isFirstClick = true;
_milliseconds = 0;
}
}

//鼠标按下事件
private void button1_MouseDown(object sender, MouseEventArgs e)
{
if (_isFirstClick)
{
_doubleRec = new Rectangle(e.X - SystemInformation.DoubleClickSize.Width / 2,
e.Y - SystemInformation.DoubleClickSize.Height / 2,
SystemInformation.DoubleClickSize.Width,
SystemInformation.DoubleClickSize.Height);
_isFirstClick = false;
_doubleClickTimer.Start();
}
else
{
if (_doubleRec.Contains(e.Location))
{
_isDoubleClick = true;
}
}
}
}
}