public static void WriteZip(string packagePath, string[] filePathes, string[] contentTypes, HttpResponse response, string fileName)
{
if (filePathes.Length != contentTypes.Length)
{
throw new ArgumentException("The lengths of the number of files and the content types should be equal");
}
response.Clear();
response.AddHeader("content-disposition", "attachment; filename=" + fileName + ".zip");
response.ContentType = "application/zip";
using (ZipPackage package = (ZipPackage)Package.Open(packagePath, FileMode.Create))
{
for (int i = 0; i < filePathes.Length; i++)
{
string destFilename = ".\\" + Path.GetFileName(filePathes[i]);
Uri uri = PackUriHelper.CreatePartUri(new Uri(destFilename, UriKind.RelativeOrAbsolute));
if (package.PartExists(uri))
{
package.DeletePart(uri);
}
PackagePart part = package.CreatePart(uri, "", CompressionOption.Normal);
using (FileStream fileStream = new FileStream(filePathes[i], FileMode.Open, FileAccess.Read))
{
using (Stream dest = part.GetStream())
{
CopyStream(fileStream, dest);
}
}
}
package.Flush();
}
response.Write(packagePath);
response.Flush();
response.Close();
}
