仿Windows XP系统的任务栏菜单

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

        private void textBox1_Enter（object sender EventArgs e）
        {
            （（TextBox）sender）.BackColor = Color.CornflowerBlue;
        }

        private void textBox1_Leave（object sender EventArgs e）
        {
            （（TextBox）sender）.BackColor = Color.White;
        }

        private void textBox1_KeyDown（object sender KeyEventArgs e）
        {
            if （e.KeyValue == 13）
            {
                int n = Convert.ToInt32（（（TextBox）sender）.Tag.ToString（））;
                Clear_Control（this.Controls n 6）;
            }
        }

        #region  遍历指定的控件
        /// 

        /

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件         938  2009-02-11 13:44  sj\01\FocusChangeColor\FocusChangeColor.sln
     文件       14336  2009-02-11 14:46  sj\01\FocusChangeColor\FocusChangeColor.suo
     文件        3743  2009-02-11 13:57  sj\01\FocusChangeColor\FocusChangeColor\FocusChangeColor.csproj
     文件        1908  2009-02-11 14:45  sj\01\FocusChangeColor\FocusChangeColor\Form1.cs
     文件        9151  2009-02-11 14:37  sj\01\FocusChangeColor\FocusChangeColor\Form1.Designer.cs
     文件        5814  2009-02-11 14:37  sj\01\FocusChangeColor\FocusChangeColor\Form1.resx
     文件         497  2009-02-11 13:44  sj\01\FocusChangeColor\FocusChangeColor\Program.cs
     文件       11264  2009-02-11 14:45  sj\01\FocusChangeColor\FocusChangeColor\bin\Debug\FocusChangeColor.exe
     文件       24064  2009-02-11 14:45  sj\01\FocusChangeColor\FocusChangeColor\bin\Debug\FocusChangeColor.pdb
     文件       14328  2009-02-11 14:46  sj\01\FocusChangeColor\FocusChangeColor\bin\Debug\FocusChangeColor.vshost.exe
     文件         490  2007-07-21 01:33  sj\01\FocusChangeColor\FocusChangeColor\bin\Debug\FocusChangeColor.vshost.exe.manifest
     文件        1123  2009-02-11 14:46  sj\01\FocusChangeColor\FocusChangeColor\obj\Debug\FocusChangeColor.csproj.FileListAbsolute.txt
     文件         847  2009-02-11 14:37  sj\01\FocusChangeColor\FocusChangeColor\obj\Debug\FocusChangeColor.csproj.GenerateResource.Cache
     文件       11264  2009-02-11 14:45  sj\01\FocusChangeColor\FocusChangeColor\obj\Debug\FocusChangeColor.exe
     文件         180  2009-02-11 14:37  sj\01\FocusChangeColor\FocusChangeColor\obj\Debug\FocusChangeColor.Form1.resources
     文件       24064  2009-02-11 14:45  sj\01\FocusChangeColor\FocusChangeColor\obj\Debug\FocusChangeColor.pdb
     文件         180  2009-02-11 13:57  sj\01\FocusChangeColor\FocusChangeColor\obj\Debug\FocusChangeColor.Properties.Resources.resources
     文件        1364  2009-02-11 13:44  sj\01\FocusChangeColor\FocusChangeColor\Properties\AssemblyInfo.cs
     文件        2882  2009-02-11 13:44  sj\01\FocusChangeColor\FocusChangeColor\Properties\Resources.Designer.cs
     文件        5612  2009-02-11 13:44  sj\01\FocusChangeColor\FocusChangeColor\Properties\Resources.resx
     文件        1101  2009-02-11 13:44  sj\01\FocusChangeColor\FocusChangeColor\Properties\Settings.Designer.cs
     文件         249  2009-02-11 13:44  sj\01\FocusChangeColor\FocusChangeColor\Properties\Settings.settings
     文件         911  2009-02-11 14:48  sj\02\HideKit\HideKit.sln
     文件       14848  2009-02-12 14:18  sj\02\HideKit\HideKit.suo
     文件        3134  2009-02-12 13:52  sj\02\HideKit\HideKit\Form1.cs
     文件        5788  2009-02-12 13:52  sj\02\HideKit\HideKit\Form1.Designer.cs
     文件       53016  2009-02-12 13:52  sj\02\HideKit\HideKit\Form1.resx
     文件        3725  2009-02-11 14:58  sj\02\HideKit\HideKit\HideKit.csproj
     文件         488  2009-02-11 14:48  sj\02\HideKit\HideKit\Program.cs
     文件       41984  2009-02-12 13:52  sj\02\HideKit\HideKit\bin\Debug\HideKit.exe
     文件       26112  2009-02-12 13:52  sj\02\HideKit\HideKit\bin\Debug\HideKit.pdb
............此处省略50个文件信息