<%@ Page Language="C#" %> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server"> <title>ClientScriptManager Example</title> <script type="text/javascript"> window.onbeforeunload = function (evt) { var message = 'Are you sure you want to leave?'; if (typeof evt == 'undefined') { evt = window.event; } if (evt) { evt.returnValue = message; } return message; } </script> </head> <body> <form id="Form1" runat="server"> <div> </div> </form> </body> </html>
Saturday, September 04, 2010
How to find browser window close or refresh using java script
Tested and works in IE, Mozilla FireFox, Safari
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