效果图：
程序核心代码：
using System;  
using System.Collections.Generic;  
using System.ComponentModel;  
using System.Data;  
using System.Drawing;  
using System.Text;  
using System.Windows.Forms;  

namespace QQPanelDemo  
{  
    /// <SUMMARY></SUMMARY>  
    ///在程序中用到了三种控件（不包括窗体类）：ImageList、Button和ListView。  
    ///Button控件显示好友分组，点击之后显示相应好友分组的信息；ImageList控件用于存放好友头像；ListView控件用于显示好友列表。  
    ///在程序中不是用Location来定位控件的位置，而是使用Dock属性来设置控件的停靠，并随着父控件一起调整大小。   
    public partial class MainForm : Form  
    {  
        public MainForm()  
        {  
            InitializeComponent();  
        }   
        //显示我的好友名单菜单  
        private void btnMyFriend_Click(object sender, EventArgs e)  
        {  
            //设置停靠  
            listView.Dock = DockStyle.None;  
            btnMyFriend.Dock = DockStyle.Top;  
            btnMyColleague.Dock = DockStyle.Bottom; 
            btnMyStranger.SendToBack();  
            btnMyStranger.Dock = DockStyle.Bottom;  
            listView.BringToFront();  
            listView.Dock = DockStyle.Bottom;  

            //添加项  
            listView.Clear();  
            listView.Items.Add("IT", "IT", 5);  
            listView.Items.Add("知道", "知道", 1);  
            listView.Items.Add("程序", "程序", 7);  
            listView.Items.Add("开发", "开发", 7);  
            listView.Items.Add("眯眯", "眯眯", 6);  
            listView.Items.Add("喜欢", "喜欢", 8);  
            listView.Items.Add("访问", "访问", 9);  
        }  

          private void MainForm_Load(object sender, EventArgs e)
        {        //设置停靠  
            listView.Dock = DockStyle.None;  
            btnMyFriend.Dock = DockStyle.Top;  
            btnMyColleague.Dock = DockStyle.Bottom;  
            btnMyStranger.SendToBack();  
            btnMyStranger.Dock = DockStyle.Bottom;  
            listView.BringToFront();  
            listView.Dock = DockStyle.Bottom;  

            //添加项  
            listView.Clear();  
            listView.LargeImageList = imageList;  
            listView.Items.Add("IT", "IT", 5);  
            listView.Items.Add("知道", "知道", 1);  
            listView.Items.Add("眯眯", "眯眯", 4);  
            listView.Items.Add("程序", "程序", 7); 
            listView.Items.Add("开发", "开发", 7);  
            listView.Items.Add("喜欢", "喜欢", 8);  
            listView.Items.Add("访问", "访问", 9);  
        }  

        //显示我的陌生人菜单  
        private void btnMyStranger_Click(object sender, EventArgs e)  
        {  
            //设置停靠  
            listView.Dock = DockStyle.None;  
            btnMyStranger.SendToBack();  
            btnMyStranger.Dock = DockStyle.Top;  
            btnMyColleague.SendToBack();  
            btnMyColleague.Dock = DockStyle.Top;  
            btnMyFriend.SendToBack();  
            btnMyFriend.Dock = DockStyle.Top;  
            listView.Dock = DockStyle.Top;  

            ////添加项  
            listView.Clear();  
            listView.Items.Add("棋友", "棋友", 16);  
            listView.Items.Add("23", "23", 14);  
            listView.Items.Add("qq", "qq", 15);  
            listView.Items.Add("ww", "ww", 12);  
            listView.Items.Add("rr", "ee", 11);  
            listView.Items.Add("tt", "yy", 9);  
            listView.Items.Add("书友uu", "书友uu", 10);  
            listView.Items.Add("ii笔友", "ii笔友", 13);  
        }