在C＃应用程序中自动解压zip文件

在C＃应用程序中自动解压zip文件

//解压
using ICSharpCode.SharpZipLib.BZip2;
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.Zip.Compression;
using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
using ICSharpCode.SharpZipLib.GZip;

private void butImg_Click(object sender, System.EventArgs e)
  {

if (folderBrowserDialog1.ShowDialog()==DialogResult.OK)
   {
    try
    {
     txtb1.Text=folderBrowserDialog1.SelectedPath;
     //解压
     UnZip(txtb1.Text+"\\SBDAT.ZIP");
     this.butt2.Enabled=true;
    }
    catch(Exception ee)
    {
     this.butt2.Enabled=false;
     this.Alert("请检查路径是否正确！浏览解压路径出错，原因："+ee.Message );
    }
   }

}

/// <summary>
  /// 解压程序
  /// </summary>
  /// <param name="strFile"></param>
  public void UnZip(string strFile)
  {
   ZipInputStream s = new ZipInputStream(File.OpenRead(strFile));
   ZipEntry theEntry;
   while ((theEntry = s.GetNextEntry()) != null)
   {
    //this.txt1.Text=this.txt1.Text+"\r\n"+theEntry.Name;
    //string directoryName = Path.GetDirectoryName(theEntry.Name);
    //string directoryName = Path.GetDirectoryName(strFile)+"\\"+theEntry.Name;
    string fileName      = Path.GetFileName(theEntry.Name);
    // create directory
    //Directory.CreateDirectory(directoryName);
    if (fileName != String.Empty)
    {
     FileStream streamWriter = File.Create(Path.GetDirectoryName(strFile)+"\\"+theEntry.Name);
     int size = 2048;
     byte[] data = new byte[2048];
     while (true)
     {
      size = s.Read(data, 0, data.Length);
      if (size > 0)
      {
       streamWriter.Write(data, 0, size);
      }
      else
      {
       break;
      }
     }
     streamWriter.Close();
    }
   }
   s.Close();
  }