ASP.NET Tutorial/File Directory/DeflateStream
Decompressing a file using DeflateStream (C#)
<source lang="csharp">
<%@ Page Language="C#" %> <%@ Import Namespace="System.IO" %> <%@ Import Namespace="System.IO.rupression" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server">
protected void Page_Load(object sender, EventArgs e) { string filename = Server.MapPath("Data.zip"); FileStream infile = File.OpenRead(filename); DeflateStream deflateStream = new DeflateStream(infile, CompressionMode.Decompress); byte[] buffer = new byte[infile.Length + 100]; int offset = 0; int totalCount = 0; while (true) { int bytesRead = deflateStream.Read(buffer, offset, 100); if (bytesRead == 0) { break; } offset += bytesRead; totalCount += bytesRead; } FileStream outfile = File.Create(Path.ChangeExtension(filename, "txt")); outfile.Write(buffer, 0, buffer.Length); outfile.Close(); }
</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">
<title>Untitled Page</title>
</head> <body>
<form id="form1" runat="server">
</form>
</body> </html></source>
Decompressing a file using DeflateStream (VB)
<source lang="csharp">
<%@ Page Language="VB" %> <%@ Import Namespace="System.IO" %> <%@ Import Namespace="System.IO.rupression" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Dim filename As String = Server.MapPath("Data.zip") Dim infile As FileStream = File.OpenRead(filename) Dim deflateStream As New DeflateStream(infile, CompressionMode.Decompress) Dim buffer(infile.Length + 100) As Byte Dim offset As Integer = 0 Dim totalCount As Integer = 0 While True Dim bytesRead As Integer = deflateStream.Read(buffer, offset, 100) If bytesRead = 0 Then Exit While End If offset += bytesRead totalCount += bytesRead End While Dim outfile As FileStream = File.Create(Path.ChangeExtension(filename, "txt")) outfile.Write(buffer, 0, buffer.Length) outfile.Close() End Sub
</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">
<title>Untitled Page</title>
</head> <body>
<form id="form1" runat="server">
</form>
</body> </html></source>