asp.net implementation of folder and file compression, and implementation of the download

Steps

1) First quote ICSharpCode.SharpZipLib.dll;

2). cs File Introduction

Using System.IO;
Using System.Text;

Using ICSharpCode.SharpZipLib.Checksums;
Using ICSharpCode.SharpZipLib.Zip;
Using ICSharpCode.SharpZipLib.GZip;

3) Code

#region The following code to compress and download the code
Zipoutputstream Zos = null;
String strbasedir = "";

       void Dlzipdir (String strpath, String strfilename)
        {
           MemoryStream ms = NULL;
           Response.ContentType = "Application/octet-stream";
           strFileName = Httputility.urlencode (strFileName) . Replace (' + ', ' ');
           Response.AddHeader ("Content-disposition", " attachment;   filename= "+ strFileName +". zip ");
           ms = new MemoryStream ();
           Zos = new Zipoutputstream (MS);
           strbasedir = strpath + "";
           Addzipentry (sTRBASEDIR);
           Zos. Finish ();
           Zos. Close ();
           response.clear ();
           Response.BinaryWrite (Ms. ToArray ());
           Response.End ();
      }

       void Addzipentry (string pathstr)
       {
           DirectoryInfo di = new DirectoryInfo (PATHSTR);
           foreach (DirectoryInfo item in DI. GetDirectories ())
           {
                addzipentry (item. FullName);
          }
           foreach (FileInfo item in DI. GetFiles ())
           {
                FileStream fs = File.openread (item. FullName);
               byte[]Buffer = new Byte[fs. Length];
               FS. Read (buffer, 0, buffer.) Length);
               String strentryname = Item. Fullname.replace (Strbasedir, "");
               ZipEntry entry = new ZipEntry (Strentryname);
               Zos. Putnextentry (entry);
               Zos. Write (buffer, 0, buffer.) Length);
               FS. Close ();
          }
      }  
      

PRotected void Button2_Click (object sender, EventArgs e)
{
String UserPath = "D: Huahai Training (qqview.com) All levels of accounts and passwords";

Dlzipdir (UserPath, "Huahai Training (qqview.com) service account");

}

#endregion