我在 asp.net VB 中的树视图控件有一个烦人的问题，它在扩展菜单时将内容页面区域向下推。
我创建了适当的 div 来分隔各个部分
母版页非常基本：-
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
<asp:ContentPlaceHolder id="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div id="wrapper">
<div id="header">
<h1>This is header</h1>
</div>
<div id="nav">
<asp:TreeView ID="TreeView1" runat="server" DataSourceID="SiteMapDataSource1"
ImageSet="BulletedList2" ShowExpandCollapse="False">
<HoverNodeStyle Font-Underline="True" ForeColor="#5555DD" />
<NodeStyle Font-Names="Verdana" Font-Size="8pt" ForeColor="Black"
HorizontalPadding="0px" NodeSpacing="0px" VerticalPadding="0px" />
<ParentNodeStyle Font-Bold="False" />
<SelectedNodeStyle Font-Underline="True" ForeColor="#5555DD"
HorizontalPadding="0px" VerticalPadding="0px" />
</asp:TreeView>
<asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" />
</div>
<div id="content">
<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
<div id="footer">
<p>This is footer</p>
</div>
</div>
</form>
</body>
</html>
CSS是： -
body {
}
#wrapper{
margin:0 auto;
width:780px;
}
#nav{
width:100px;
border:1px solid black;
padding:5px;
}
#header{
height:100px;
background:blue;
color:white;
float:left;
width:100%;
}
#content{
margin-left:110px;
border:1px solid black;
background:yellow;
float:left;
width:600px;
}
#footer{
height:200px;
background:pink;
clear:both;
}
Treeview 只是将内容页面向下推，我觉得我已经尝试了所有方法，除了使用表格。