I have a main aspx page EXT window, from there it is opening another ext window for an action, it is opening and assigns the page releated hidden column values. After that a button event is clicked which completes the expected functionality and while returning back it should open a file in a new window to display the file (PDF) which actually created in the button controller action event returns back to the window at that time the hidden values are not persist. because of that the file is not opening in the new window.

The application is used ASP.NET MVC with EXT.NET