C# winform 输入提示（自动完成）

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;
using System.IO;

namespace Demo
{
    public partial class Demo : Form
    {
        public Demo（）
        {
            InitializeComponent（）;
        }
        /// 

        /// 始发站 文本框 键盘按下松开事件
        /// 

        /// 
        /// 
        private static TextBox txtStation_Name txtStation_Value;
        private static ListBox ltb_Stations;
        /// 

        /// 站点文本框 键盘按下松开事件
        /// 

        /// 
        /// 
        private 

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2013-11-16 12:37  AutoCompleteDemo\
     文件        1534  2013-11-16 12:25  AutoCompleteDemo\AutoCompleteDemo.sln
     文件       71680  2013-11-16 23:15  AutoCompleteDemo\AutoCompleteDemo.suo
     目录           0  2013-11-16 23:14  AutoCompleteDemo\Demo\
     文件        8103  2013-11-16 12:21  AutoCompleteDemo\Demo\Demo.Designer.cs
     文件        8337  2013-11-16 23:14  AutoCompleteDemo\Demo\Demo.cs
     文件        4058  2013-11-16 23:15  AutoCompleteDemo\Demo\Demo.csproj
     文件         227  2013-11-16 23:15  AutoCompleteDemo\Demo\Demo.csproj.user
     文件        5817  2013-11-16 12:21  AutoCompleteDemo\Demo\Demo.resx
     文件         484  2013-11-16 12:19  AutoCompleteDemo\Demo\Program.cs
     目录           0  2013-11-15 19:43  AutoCompleteDemo\Demo\Properties\
     文件        1358  2013-11-09 15:03  AutoCompleteDemo\Demo\Properties\AssemblyInfo.cs
     文件        2847  2013-11-16 23:15  AutoCompleteDemo\Demo\Properties\Resources.Designer.cs
     文件        5959  2013-11-16 23:15  AutoCompleteDemo\Demo\Properties\Resources.resx
     文件        1104  2013-11-13 13:49  AutoCompleteDemo\Demo\Properties\Settings.Designer.cs
     文件         249  2013-11-09 15:03  AutoCompleteDemo\Demo\Properties\Settings.settings
     文件         144  2013-11-13 13:49  AutoCompleteDemo\Demo\app.config
     目录           0  2013-11-16 23:14  AutoCompleteDemo\Demo\bin\
     目录           0  2013-11-16 23:15  AutoCompleteDemo\Demo\bin\Debug\
     文件       14848  2013-11-16 23:15  AutoCompleteDemo\Demo\bin\Debug\Demo.exe
     文件         144  2013-11-13 13:49  AutoCompleteDemo\Demo\bin\Debug\Demo.exe.config
     文件       26112  2013-11-16 23:15  AutoCompleteDemo\Demo\bin\Debug\Demo.pdb
     文件       11600  2013-11-16 23:13  AutoCompleteDemo\Demo\bin\Debug\Demo.vshost.exe
     文件         144  2013-11-13 13:49  AutoCompleteDemo\Demo\bin\Debug\Demo.vshost.exe.config
     文件         490  2010-03-17 22:39  AutoCompleteDemo\Demo\bin\Debug\Demo.vshost.exe.manifest
     目录           0  2013-11-16 23:14  AutoCompleteDemo\Demo\bin\Debug\Resource\
     文件        1596  2013-11-15 10:01  AutoCompleteDemo\Demo\bin\Debug\Resource\PendingRequest_32x32_72.png
     文件        4286  2013-11-10 14:23  AutoCompleteDemo\Demo\bin\Debug\Resource\favicon.ico
     文件       48165  2013-11-15 16:23  AutoCompleteDemo\Demo\bin\Debug\Resource\station_data.txt
     目录           0  2013-11-16 23:15  AutoCompleteDemo\Demo\bin\Release\
     目录           0  2013-11-16 12:37  AutoCompleteDemo\Demo\obj\
............此处省略14个文件信息