CODEWITHSUNDEEP
asp.nettransmitfile
Dr. Rajesh Rolen
Dr. Rajesh Rolen

Reputation: 14285

Error in file after download

I have word document which is opening perfectly at server but when i download it using button click event of my website it gets currept. i am using below code on button click to make document download. please help to resolve this problem: i am using .net framework 3.5

 Response.Clear();
 Response.AddHeader("Content-Disposition", "attachment; filename=StandardLetter" + _responseId.ToString() + ".doc");
 Response.ContentType = "application/octet-stream";

 Response.TransmitFile (Server.MapPath("~/document/letter/StandardLetter" + _responseId.ToString() + ".doc"));

Upvotes: 0

Views: 340

Answers (3)

Hans Kesting
Hans Kesting

Reputation: 39338

Do you have a Response.End() after that code you posted? If not, you will get extra "html" code from the aspx file added to the transmitted file - thus corrupting it.

EDIT
As Akshay Anand mentioned, a better way would be to call HttpContext.Current.ApplicationInstance.CompleteRequest(); instead of Response.End() see docs. See also this question.

Upvotes: 2

Markive
Markive

Reputation: 2400

Ok well here is the code I use, it's vb but easily converted ;)

 Response.ContentType = "application/pdf"
        Dim byteArray As Byte() = File.ReadAllBytes(MergedFile)

        Response.AddHeader("Content-Disposition", "attachment;filename=""" & ShortFilename & """")
        Response.AddHeader("Content-Length", byteArray.Length)
        Response.BinaryWrite(byteArray)
        Response.Flush()
        Response.End()

This works for PDF and by changing .ContentType to Excel spits that out too.. So I assume this will take any MIME type. Good luck!

I take my pdf document called MergedFile and convert it to a byte(), I give it a 'ShortName' that can be entered by the user. Content-Length is very important..

Upvotes: 1

Markive
Markive

Reputation: 2400

Instead try:

Response.ContentType ="application/msword";

I dont use Word but for Excel I use:

Response.ContentType = "application/x-msexcel"

Upvotes: 1

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