How to the compress file


Following code explain how to compress file.

Following code explain how to compress file.



Public Sub CompressGivenFile(ByVal srcFile As String, ByVal destFile As String)

Dim buffer As Byte() = Nothing
Dim sourceStream As FileStream = Nothing
Dim destinationStream As FileStream = Nothing
Dim compressedStream As GZipStream = Nothing

Try
sourceStream = New FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.Read)

buffer = New Byte(sourceStream.Length) {}
Dim checkCounter As Integer = sourceStream.Read(buffer, 0, buffer.Length)
destinationStream = New FileStream(destinationFile, FileMode.OpenOrCreate, FileAccess.Write)

compressedStream = New GZipStream(destinationStream, CompressionMode.Compress, True)

compressedStream.Write(buffer, 0, buffer.Length)

Catch ex As ApplicationException
MessageBox.Show(ex.Message, "An Error occured during compression", MessageBoxButtons.OK, MessageBoxIcon.Error)
End Try
End Sub


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Upload and Compressed file

By using the code you can upload file and then compressed it. It Retrieve file information and upload to server.

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Comments

Author: vijetha10 Jun 2010 Member Level: Gold   Points : 0

http://www.dotnetspider.com/resources/17244-Zipping-Unzipping-Files.aspx



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