Redirecting a page after a PDF download

Question

I have an aspx (say 1.aspx) page from where first I am downloading a pdf file and then I want to redirect to some Thanks.aspx page. The code is this:

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Answer 1

See the article mentioned in this accepted answer: https://stackoverflow.com/a/11018277/1037864 (direct link: http://gruffcode.com/2010/10/28/detecting-the-file-download-dialog-in-the-browser/)

The idea is to set a cookie and send it together with the file. Meanwhile you let the waiting page block the UI while it is waiting for the cookie to arrive.