Download file from database asp.net

Question

I am reading PDF data from a database field (database field format is 'Data') and I have converted it into bytes using data reader GetBytes and I have it right because it's working fine in other operation.

I added a button on aspx page, and, on button click, I have the below code to download it:

Response.Clear();
Response.Buffer = true;
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename="test.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.BinaryWrite(byteArray);
Response.End();

But it's not doing any thing. I mean when I click the button I can step through it but after response.end() nothing happens.

Any idea what I am doing wrong?

Answer 1

Move your button outside of update panel. You also need to add postback trigger as Oguz Ozgul mentioned it. Additionally you should add ThreadAbortException catch also just to stay safe...