ی کد با DLL برای Zip

[mjsoft]

ی کد با DLL برای Zip کردن براتون میذارم

	ZipOutputStream zos = null;

	protected void Button1_Click(object sender, EventArgs e)

	{

		string[] pathCollection = new string[2];

		PathCellction[0] = "c:\\folder1";

		PathCellction[1] = "c:\\folder2";

		StartZip(pathCollection, "filename");

	}



	protected void StartZip(string[] pathCollection, string strFileName)

	{

		MemoryStream ms;

		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);

		addZipEntry(pathCollection);

		ms.Close();

		zos.Finish();

		zos.Close();

		Response.Clear();

		Response.BinaryWrite(ms.ToArray());

		Response.End();

	}



	protected void addZipEntry(string[] pathCollection)

	{

		for (int i = 0; i < pathCollection.Length; i++)

		{

			string strPath = pathCollection[i];

			addZipEntry(strPath, strPath.LastIndexOf("\\") + 1);

		}

	}



	protected void addZipEntry(string strPath, int baseIndex)

	{

		DirectoryInfo di = new DirectoryInfo(strPath);

		foreach (DirectoryInfo item in di.GetDirectories())

		{

			addZipEntry(item.FullName, baseIndex);

		}

		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.Remove(0, baseIndex);

			ZipEntry entry = new ZipEntry(strEntryName);

			zos.PutNextEntry(entry);

			zos.Write(buffer, 0, buffer.Length);

			fs.Close();

		}

	}