Is it possible to preserve data during a system shutdown, restart, logout, logoff, or application closure on a WEB

In my web application, suppose there are two labels lbl1 and lbl2 on a page, each with a corresponding textbox. When the application is open in a web browser, I need to save any data entered into these textboxes to a file (such as Excel or XML) if the application is shutdown, restarted, logged out, or closed.

Answer №1

One way to achieve this is by utilizing the window.onbeforeunload event.

Answer №2

The window.onbeforeunload event fails to trigger when the operating system is in the process of logging off or shutting down.

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