以下是我正在使用的代码段,但永远不会调用onbeforeunload事件处理程序。
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<script src="/Content/themes/Scripts/modernizr-2.6.2-respond-1.1.0.min.js"></script>
<script src="/Content/themes/Scripts/jquery-1.10.2.min.js"></script>
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<%--<script src="layerslider/jQuery/jquery-easing-1.3.js"></script>
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<link rel="stylesheet" type="text/css" href="/Content/themes/Scripts/combobox/dd.css" />
<script src="/Content/themes/Scripts/combobox/jquery.dd.js"></script>
<script type="text/javascript">
function fnCallUnload() {
debugger;
var xmlData = "<Root sMethodName='SaveState'>";
fnSetCommonDataToXMLVariable(xmlData);
xmlData += "</Root>";
CallServer(xmlData, "");
}
window.onbeforeunload = fnCallUnload;
</script>
</head>
我在母版页中尝试了onbeforeunload事件,并在try catch中调用了内容页面的功能。它在那里工作顺利。但是我尝试使用onbeforeunload的这个页面不需要母版页。它是应用程序中的独立页面。所以,我猜有一些关于onbeforeunload使用的一些小概念我不知道。
非常感谢任何帮助。
由于
答案 0 :(得分:0)
这应该可行,但是unbeforeunload需要返回一个字符串。如果不是,由于安全原因它不会发射。
将此添加为最后一行。
return "Do you want to quit?";
然而,这个帖子将jQuery归咎于罪魁祸首 window.onbeforeunload not firing
变化
window.onbeforeunload = fnCallUnload;
到
window.addEventListener("beforeunload", fnCallUnload, false);