Showing message box when user tries to navigate to another page in ASP.net

Question

I have several pages in my ASP.Net application and several Hyperlinks in pages.

Is there anyway I can alert users if he/she tries to navigate without saving data?

Please help

Does this answer your question? [Warn user before leaving web page with unsaved changes](/q/7317273/90527) — outis, Oct 17 '22 at 21:00

score 1 · Answer 1 · answered Apr 10 '11 at 01:48

1

Take a look at the JavaScript onbeforeunload event.

As a user fills in form fields, upon blur from any of the fields, set a HasData variable to true. Using the Onbeforeuload event, you can check to see if HasData is true. If so, you can prompt the user to confirm that they want to leave without saving.

answered Apr 10 '11 at 01:48

NakedBrunch

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by using onbeforeunload alert will show on every click, which is not good to use – Rocky May 16 '11 at 07:50

Showing message box when user tries to navigate to another page in ASP.net

1 Answers1