关键代码：
MasterPage.master
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; height: 100%">
<tr>
<td colspan="2" style="height: 100px">
<asp:SiteMapPath ID="SiteMapPath1" runat="server">
</asp:SiteMapPath>
</td>
</tr>
<tr>
<td style="width: 200px">
<asp:TreeView ID="TreeView1" runat="server" DataSourceID="SiteMapDataSource1">
</asp:TreeView>
<asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" SiteMapProvider="DefaultSiteMap" />
</td>
<td>
<asp:contentplaceholder id="ContentPlaceHolder1" runat="server">
</asp:contentplaceholder>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
Web.sitemap
<?xml version="1.0" encoding="utf-8" ?>
<siteMap>
<siteMapNode title="Default" description="Home" url="Default.aspx" >
<siteMapNode title="Members" description="Members" url="Members.aspx">
<siteMapNode title="My Account" description="My Account" url="MyAccount.aspx" />
<siteMapNode title="Products" description="Products" url="Products.aspx" />
</siteMapNode>
<siteMapNode title="Administration" description="Administration" url="~/Admin/Default.aspx">
<siteMapNode title="Customer" description="Customer Admin" url="~/Admin/Customer/default.aspx" />
<siteMapNode title="Products Admin" description="Products Admin" url="~/Admin/ProductsAdmin.aspx" />
</siteMapNode>
</siteMapNode>
</siteMap>
Web.config
<system.web>
<siteMap defaultProvider="DefaultSiteMap">
<providers>
<add name="DefaultSiteMap" type="System.Web.XmlSiteMapProvider" siteMapFile="~/Web.sitemap"/>
</providers>
</siteMap>
</system.web>
MasterPage.master<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %><!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>无标题页</title></head><body> <form id="form1" runat="server"> <div> <table border="0" cellpadding="0" cellspacing="0" style="width: 100%; height: 100%"> <tr> <td colspan="2" style="height: 100px"> <asp:SiteMapPath ID="SiteMapPath1" runat="server"> </asp:SiteMapPath> </td> </tr> <tr> <td style="width: 200px"> <asp:TreeView ID="TreeView1" runat="server" DataSourceID="SiteMapDataSource1"> </asp:TreeView> <asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" SiteMapProvider="DefaultSiteMap" /> </td> <td> <asp:contentplaceholder id="ContentPlaceHolder1" runat="server"> </asp:contentplaceholder> </td> </tr> </table> </div> </form></body></html>Web.sitemap<?xml version="1.0" encoding="utf-8" ?><siteMap> <siteMapNode title="Default" description="Home" url="Default.aspx" > <siteMapNode title="Members" description="Members" url="Members.aspx"> <siteMapNode title="My Account" description="My Account" url="MyAccount.aspx" /> <siteMapNode title="Products" description="Products" url="Products.aspx" /> </siteMapNode> <siteMapNode title="Administration" description="Administration" url="~/Admin/Default.aspx"> <siteMapNode title="Customer" description="Customer Admin" url="~/Admin/Customer/default.aspx" /> <siteMapNode title="Products Admin" description="Products Admin" url="~/Admin/ProductsAdmin.aspx" /> </siteMapNode> </siteMapNode></siteMap>Web.config<system.web><siteMap defaultProvider="DefaultSiteMap"> <providers> <add name="DefaultSiteMap" type="System.Web.XmlSiteMapProvider" siteMapFile="~/Web.sitemap"/> </providers> </siteMap> </system.web>