QQ好友列表控件源码可做左侧折叠导航

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

using System.Reflection;
using _CUSTOM_CONTROLS._ChatListBox;

namespace WindowsFormsForControlTest
{
    public partial class Form1 : Form
    {
        public Form1（） {
            InitializeComponent（）;
        }

        private void Form1_Load（object sender EventArgs e） {
            button1.Text = “闪动“;
            button2.Text = “插入[离开]“;
            button3.Text = “大/小图标“;
            chatListBox1.Items.Clear（）;
            Random rnd = new Random（）;
            for （int i = 0; i < 10; i++） {
                ChatListItem item = new ChatListItem（“Group “ + i）;
                for （int j = 0; 

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2012-11-11 03:55  _CUSTOM_CONTROLS\
     目录           0  2012-11-11 03:55  _CUSTOM_CONTROLS\WindowsFormsForControlTest\
     目录           0  2012-11-11 03:55  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\
     目录           0  2012-11-11 03:55  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\
     目录           0  2012-11-11 03:55  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\
     文件        3924  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （0）.png
     文件        3677  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （1）.png
     文件        2250  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （10）.PNG
     文件        3157  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （11）.PNG
     文件        2451  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （12）.PNG
     文件        2300  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （13）.PNG
     文件        2396  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （14）.PNG
     文件        2545  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （15）.PNG
     文件        2545  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （16）.PNG
     文件        3868  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （17）.PNG
     文件        3824  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （18）.PNG
     文件        3821  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （19）.PNG
     文件        3436  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （2）.png
     文件        3788  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （20）.PNG
     文件        4411  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （21）.PNG
     文件        4204  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （22）.PNG
     文件        4251  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （23）.PNG
     文件        3598  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （24）.PNG
     文件        4049  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （25）.PNG
     文件        4057  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （26）.PNG
     文件        3998  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （27）.PNG
     文件        4208  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （28）.PNG
     文件        3834  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （29）.PNG
     文件        2496  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （3）.PNG
     文件        3862  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （30）.PNG
     文件        4076  2010-09-09 21:37  _CUSTOM_CONTROLS\WindowsFormsForControlTest\bin\Debug\Head\1 （31）.PNG
............此处省略174个文件信息