ASP.NET: Warning on changed data closing windows

Question

I\'d like to warn users when they try to close a browser window if they didn\'t save the changes they made in the web form.

I\'m us

Answer 1

Here is an ASP.NET extender control that will help you with this:

http://www.codeproject.com/KB/ajax/ajaxdirtypanelextender.aspx

Hope this helps. It may not perfectly fit your needs but it at least shows you how.