简单的文件版本更新

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.Net;

namespace WinUpVer
{
    public partial class FrmMain : Form
    {
        public FrmMain()
        {
            InitializeComponent();
        }

        private WebClient MyWebClient = new WebClient();
        private void MyWebClient_DownloadFileCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
        {
            if (e.Error != null)
            {
                MessageBox.Show(e.Error.Message, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            else if ((e.Cancelled == true))
            {
                MessageBox.Show("下载文件操作被取消！", "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            else
            {
                MessageBox.Show("下载文件操作完成！", "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

                CommonBaseInfo.Zip.DeCompressFolder("c:\debug.zip",  @"c:\debug");
               
                System.Diagnostics.Process.Start(@"c:debugAssess.WinAssess.exe");
                Application.Exit();
                
            }
        }
        private void MyWebClient_DownloadProgressChanged(object sender, System.Net.DownloadProgressChangedEventArgs e)
        {
            this.progressBar1.Value = e.ProgressPercentage;
            this.label1.Text = "已经下载" + e.BytesReceived.ToString() + " 字节，全部共有" + e.TotalBytesToReceive.ToString() + "字节";
        }
        private void Form1_Load(object sender, EventArgs e)
        {
           
        }
    
        //取消下载
        private void button2_Click(object sender, EventArgs e)
        {
            MyWebClient.CancelAsync();
        }

        private void FrmMain_Load(object sender, EventArgs e)
        {
            MyWebClient.DownloadFileCompleted += new AsyncCompletedEventHandler(MyWebClient_DownloadFileCompleted);
            MyWebClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(MyWebClient_DownloadProgressChanged);
            try
            {
                this.progressBar1.Value = 0;
                this.MyWebClient.DownloadFileAsync(new Uri(@"http://xx.xxx.xx.x:100/upver/debug.zip"), @"c:\debug.zip");
            }
            catch (Exception MyEx)
            {
                MessageBox.Show(MyEx.Message, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }
    }
}