System.io.Stream Istream
=
NULL
;
//
Buffer to read 10k bytes in chunk:
Byte
[] Buffer
=
New
BYTE [
10240
];
//
Length of the file:
int
Length;
//
Total bytes to read:
Long
Datatoread;
//
Identify The File to Download Including ITS Path.
String
FilePath
=
@ "
E: / Software / SQL Server 2000 Personal Edition.iso
"
;
//
Identify the file name.
String
Filename
=
System.io.path.GetFileName (FilePath);
Try
{// Open the file. Istream = new system.io.filestream (FilePath, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.Fileshare.Read; response.clear (); / / Total bytes to read: datatoread = istream.length; long p = 0; if (Request.Headers ["Range"]! = Null) {response.statuscode = 206; p = long.parse (Request.Headers ["Range "] .Replace (" Bytes = ","). Replace ("-", "));} if (p! = 0) {response.addheader (" content-range "," bytes " P. TOSTRING () "-" ((long) (DATATOREAD - 1)). TOSTRING () "/" DATATOREAD.TOSTRING ());} Response.addheader ("Content-Length", ((long) ((long) DatatoreAD-P)). TOSTRING ()); response.contentType = "Application / OCTET-stream"; response.addheader ("Content-Dispo sition "," attachment; filename = " System.Web.HttpUtility.UrlEncode (Request.ContentEncoding.GetBytes (filename))); iStream.Position = p; dataToRead = dataToRead - p; // Read the bytes while (dataToRead. > 0) {// Verify That The Client IS Connected. If (Response.isclientConnected) {// read the data in buffer. Length = istream.read (buffer, 0, 10240);
// Write the data to the capital output.outputstream.write (buffer, 0, length); // flush the data to the html output. Response.flush (); buffer = new byte [10240]; datatoread = Datatoread - length;} else {// prevent infinite loop if user disponnects datatoread = -1;}}} catch
(Exception EX)
{// trap the error, if any. Response.write ("Error:" ex. measureage);
Finally
{IF (iStream! = Null) {// close the file. Istream.close ();} response.end ();}
