Can I find out which page a user came from on Back Button press on WP7?

Question

I haven\'t had much luck finding the answer through google searches, but is it possible to tell which page a user came from?

Or, send a query string on back button

Answer 1

One method is to override OnBackKeyPress on every page (except the main page, because that would be pointless). Within that function assign the name of the current page to a global variable. Now the page you've navigated back to can inspect the global variable and determine how you got there.