页面代码：
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:Panel ID="Panel1" runat="server" Height="170px" Width="242px">
<asp:Panel ID="Panel2" runat="server" Height ="18px">
<div style="background-image:url(image/AjaxMenuBg2.gif); background-repeat:repeat-x; color:White">我可以移动</div>
</asp:Panel>
<asp:TextBox ID="TextBox1" runat="server" Height="134px" Width="232px"></asp:TextBox></asp:Panel>
<cc1:DragPanelExtender ID="DragPanelExtender1" runat="server"
TargetControlID="Panel1"
DragHandleID="Panel2"
>
</cc1:DragPanelExtender>
</div>
<script type="text/javascript">
function setBodyHeightToContentHeight() {
document.body.style.height = Math.max(document.documentElement.scrollHeight, document.body.scrollHeight)+"px";
}
setBodyHeightToContentHeight();
&nbs
用的标签有ScriptManager，UpdatePanel，UpdateProgress ，主要的是UpdatePanel中的Triggers属性一定要对。
前台代码
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdateP ......
