Force Download pdf in document library programatically

Question

I have document library with name "magazines". containing several pdfs, I'm using caml to view these items on one page pdfs. Added 2 links on this page to the user view pdf online, and to download. Para forçar o download, eu estou redirecionando o usuário para uma nova página: http://site.com/download.aspx?urlLibrary=http://site.com/magazines/&fileName=1.pdf

This page is the following code:

Response.Clear();
Response.AddHeader("content-disposition", "attachment; filename=" + Request.QueryString["fileName"]);
Response.ContentType = "application/pdf";
Response.WriteFile(Server.MapPath("~/" + Request.QueryString["urlLibrary"] + Request.QueryString["fileName"]));
Response.End();

The download occurs at the user side, so that when you open the pdf of error, and the file has little kybtes over the original pdf. How can I force a download of the document library?

Answer 1

Take a look at this

Different problem but similar solution. It will cause a flash, but you can use the _layouts/download.aspx page from SP to download the file correctly with no errors. I was doing a similar project with infopath and this was the solution I found worked best.