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:\debug\Assess.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);
}
}
}
}