Question

I have a ASP.NET app that at one point generates a PDF file and loads the next page. I can easily do this with two separate buttons but it is made much tougher when I try to do this with one button.

When both are fired by the same button the PDF will download but the page will not load. I even had the thread sleep after the file was transmitted but it would wait but then stop afterwards.

I have attached the code that I have been trying to make work:

Response.ContentType = "application/pdf";
Response.AppendHeader("Content-Disposition", "attachment; filename=labels.pdf");
Response.TransmitFile(Server.MapPath("~/"+randomNumber.ToString()+".pdf"));
Server.Transfer("~/createshipment.aspx", true);

Answer 1

You can’t have two different responses from the server but you’re trying to do so.

First – you’d like the server to return a PDF.
Second – you’d like the server to return the createshipment.aspx page.

This is just against the communication protocol. Probably the best solution is already presented by another user, competent_tech – you could open a new window (javascript’s window.open) and this new window would return the PDF and in the same time the main window could post to the server and be redirected to the createshipment.aspx.