Close all popup dialogs when main window closed in ASP.NET

Question

In my web application a lot of popups opened from the parent window using 'window.open'. So I want to close all those popups when my application's main window is closed. How can I do that?

Answer 1

There's no callback that will notify you that the user closed his browser.

Answer 2

It's a bit problematic to know that the user closes the window but assuming you do achieve that (by a close button or subscribing to the beforeUnload event) you can close the opened windows by following the next bullets:

1. When opening a window, save its object which is returned from the window.open method (preferably to an array so you have all objects in a central place).
2. When you find out the main window is closing, execute the close method on the saved window objects.

Another possibility:

1. Use timer on the opened windows to check if opener is defined (you can try to use typeof on a method in the opener page).
2. When you find out the opener doesn't exist, close the window.

Answer 3

its not possible! You cannot catch browser close event.

You can use model popups to be sure user closed popups before closing the main window.