GZip ASP.NET 2.0

[fayazmd]

Hi,

Im my application, users will upload files to server. I want to impliment GZip to compress files.

But the compressed file is consuming more memory than actual file size.

What might be the problem?

Here is my code

protected void btnCompress_Click(object sender, EventArgs e) 
{

if (fUpload.PostedFile == null) 
{

lblMessage.Text = "No File Selected to Upload."; 
}

string strName = Path.GetFileName(fUpload.PostedFile.FileName); 
try

{

Stream oStream = fUpload.PostedFile.InputStream;

byte[] buffer = new byte[oStream.Length];

oStream.Read(buffer, 0, buffer.Length);

oStream.Close();

FileStream oFileStream = File.Create(Server.MapPath(Path.ChangeExtension(strName, "gz"))); 

GZipStream oGZipStream = new GZipStream(oFileStream, CompressionMode.Compress);oGZipStream.Write(buffer, 0, buffer.Length); 
oGZipStream.Close();

lblMessage.Text = "\"" + strName + "\" was compressed & uploaded successfully."; 
}

catch (Exception) 
{

lblMessage.Text = "An Error Occured While Uploading File."; 
}

}

[SvenV]

Your code seems right,
Maybe you should try DeflateStream instead of GzipStream. Gzip performes CRC , DeflateStream doesn't so this could resolve in a decrease in size. But how much increase are we talking about?

[fayazmd]

Your code seems right,
Maybe you should try DeflateStream instead of GzipStream. Gzip performes CRC , DeflateStream doesn't so this could resolve in a decrease in size. But how much increase are we talking about?

Hi,
I have tried with Deflate also. While testing, when i upload a 11MB file, its taking 15MB.