Asp.net - Detect Browser Close Events?

Apr 27, 2011

I am having a Web Page that looks like:

<%@ Page Language="vb" AutoEventWireup="false" MasterPageFile = "~/Master11.master" CodeBehind="test7.aspx.vb" Inherits="MyApp.test7" %>
<%@ MasterType TypeName = "ASP.sample_template_master" %>
<asp:Content ID="Content2" ContentPlaceHolderID="mainContent1" runat="server">
</asp:Content>

When the user closes the browser, I want to display a confirm box if the user wants to save before exit.

If he says yes, then I wish to save the information in database and close the browser else I just close the browser.

I read msdn forums but all I found was window closing event which I was not able to apply here.

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