在ASP.NET中检测关闭浏览器 [英] Detect Close Browser in ASP.NET

问题描述

我有一个带有MasterPage和内容页面的ASP.NET Web应用程序，当我单击MenuItem打开一个新的aspx页面时，该页面就来自MasterPage.如果我想关闭新页面的浏览器选项卡，我想显示一个弹出窗口或对话框，提醒用户他正在关闭浏览器选项卡.我在新的aspx页面中使用了以下代码:

 < script type ="text/javascript">$(window).bind("beforeunload"，function(){$(window).unbind("beforeunload");返回确认(您真的要关闭吗?")})</script> 

问题是，如果我也按下浏览closeTab以外的其他按钮，则该方法有效.我想知道如何避免这种情况.

提前谢谢.

解决方案

是的，您应该使用这样的内容:

 <脚本语言="JavaScript" type ="text/javascript">window.onbeforeunload =确认退出;函数confirmExit(){return您将在冻结声明之前退出系统！如果您现在离开并且永远不返回以冻结声明，那么它们将不会生效，并且您可能会失去税收减免，您确定要立即离开吗?";}$(function(){$("a").click(function(){window.onbeforeunload = null;});$("input").click(function(){window.onbeforeunload = null;});});</script> 

因此，每次刷新页面时都不会显示此消息

the problem is that if i press also other buttons than the browse closeTab the method works. i would like to know how can i avoid it.

thanx in advance.

解决方案

Yes, you should use something like this:

<script language="JavaScript" type="text/javascript">
    window.onbeforeunload = confirmExit;
    function confirmExit() {
    return "You are about to exit the system before freezing your declaration! If you leave now and never return to freeze your declaration; then they will not go into effect and you may lose tax deduction, Are you sure you want to leave now?";
    }
    $(function() {
        $("a").click(function() {
            window.onbeforeunload = null;
        });
        $("input").click(function() {
            window.onbeforeunload = null;
        });
    });
</script>

So this message is not showing everytime you refresh the page

Link here to the source

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