Download to file without creating a file

[guitardave78]

Hey guys and gals
I would like force a download of a file that is created in memory.

I have a string that I was saving to a text file. You then download the textfile.

I would like to somehow miss the save step and just go straight to download, is this possible with binarywrite and streams or somthing?

Cheers

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[jeepxo]

If you have the data in a binaryformat already you could write it back to the browser in binary format and change the header on the page to force a download.

Function ReadBinaryFile(FileName)
	Const adTypeBinary = 1
	Dim BinaryStream
	Set BinaryStream = Server.CreateObject("ADODB.Stream")
	BinaryStream.Type = adTypeBinary
	BinaryStream.Open
	BinaryStream.LoadFromFile FileName
	ReadBinaryFile = BinaryStream.Read
End Function

myFile = Request.QueryString("fileName")
myExtension = mid(myFile,instr(myFile,".") + 1)
myFileType = "Text"
pathName = Request.QueryString("Path")
myPath = server.MapPath(pathName & myFile)

if myExtension = "EPS" or myExtension="GIF" or myExtension="JPG" then
	myFileType = "image"
end if
if myExtension = "PDF" then
	myFileType = "application"
end if

dim myStream
myStream = ReadBinaryFile(myPath)
Response.Buffer = True
Response.AddHeader "content-disposition", "attachment; filename=" & myFile
Response.AddHeader "content-length", Len(mystream)
Response.ContentType = myFileType & "/" & myExtension
Response.BinaryWrite myStream
Response.Flush
{/code]

I use this code to force a download of PDF's, EPS, GIF and JPG files from one of our applications to the client machine.

Notice the Response.AddHeader statements and the Response.ContentType.

What you are doing is sending the data to the browser, then telling the browser not to handle it as content for the browser.

The example above opens takes a file, reads it as binary data then sends it to the browser so that the browser opens a save file dialogue box.

I'm only handling PDF, EPS JPG and GIF in this example.  If you want to use something else, you need to find out what to set for the different content types.

To build may have to be the slow laborious task of years.  To destroy can simply be the thoughtless act of a single day.

 

[guitardave78]

Hi,
This is the bit I have, what I am trying to do is create a file in memory and download it using similar code to what you have posted. I need to get a string into a text stream somehow!!

Thanks though

}...the bane of my life!

http://www.yetanotherreviewsite.co.uk

http://www.fuzzyd.co.uk