opacity：CSS3中的属性，调节透明度，一般取值0.5
添加思想:
1.对超链接添加点击事件,通过new {@onclick="showLoading()"}
Html.ActionLink("新建产品",“Create","ProductManage",
new{productLineID = productLineList[i].ID},
new{target = "Conframe",@class="create",@onclick="showLoading()"})
2.在<body>中添加div
<div id="loadingover" class="loadingover"></div>
<div id="loadinglayout" class="loadinglayout">
<img src="loading.jpg" alt="页面正在加载中..." />
</div>
3.编写样式
<style type="text/css"> .loadingover { display: none; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: #f5f5f5; opacity:0.5; z-index: 1000; } .loadinglayout { display: none; position: absolute; top: 40%; left: 40%; width: 20%; height: 20%; z-index: 1001; text-align:center; } </style>
4.showLoading函数
<script>
function showLoading(){
document.getElementById("loadinglayout").style.display = "block";
document.getElementById("loadingimg").style.display = "block";
}
</script>
5.在ifame子窗口中添加如下javascript代码
<script> $(window).load(function(){ window.parent.hiddenLoading(); }) </script>
6.在父窗口中添加hiddenLoading函数
<script> function showLoading(){
document.getElementById("loadinglayout").style.display = "none";
document.getElementById("loadingimg").style.display = "none";
}
</script>