从XML读取数据，实现二级导航功能
修改XML的节点可以对导航条进行扩展，效果部分类似http://silverlight.net/ 首页导航
XML内容如下
1
<?xml version="1.0" encoding="utf-8" ?>
2<Entity>
3 <Menu ContentText = "Baidu" ToolTipText="testTool" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">
4 <SubMenu ContentText = "Home" ToolTipText="testTool1" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
5 <SubMenu ContentText = "Home" ToolTipText="testTool1" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
6 <SubMenu ContentText = "Home" ToolTipText="testTool1" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
7 <SubMenu ContentText = "Home" ToolTipText="testTool1" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
8 </Menu>
9 <Menu ContentText = "Google" ToolTipText="testTool" Summary = "testJiao2" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">
10 <SubMenu ContentText = "Home" ToolTipText="testTool2" Summary = "testJiao2" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
11 <SubMenu ContentText = "Home" ToolTipText="testTool2" Summary = "testJiao2" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
12 <SubMenu ContentText = "Home" ToolTipText="testTool2" Summary = "testJiao2" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
13 </Menu>
14 <Menu ContentText = "Bing" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">
15 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
16 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
17 </Menu>
18 <Menu ContentText = "Sohu" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">
19 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
20 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
21 </Menu>
22 <Menu ContentText = "Sina" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">
23 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
24 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
25 </Menu>
26 <Menu ContentText = "XiaoMei" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">
27 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
28 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
29 </Menu>
30 <Menu ContentText = "Cnblogs" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">
31 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
32 <SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>
33 </Menu>
34 </Entity>
<?xml version="1.0" encoding="utf-8" ?>2
<Entity>3
<Menu ContentText = "Baidu" ToolTipText="testTool" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">4
<SubMenu ContentText = "Home" ToolTipText="testTool1" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>5
<SubMenu ContentText = "Home" ToolTipText="testTool1" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>6
<SubMenu ContentText = "Home" ToolTipText="testTool1" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>7
<SubMenu ContentText = "Home" ToolTipText="testTool1" Summary = "testJiao1" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>8
</Menu>9
<Menu ContentText = "Google" ToolTipText="testTool" Summary = "testJiao2" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">10
<SubMenu ContentText = "Home" ToolTipText="testTool2" Summary = "testJiao2" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>11
<SubMenu ContentText = "Home" ToolTipText="testTool2" Summary = "testJiao2" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>12
<SubMenu ContentText = "Home" ToolTipText="testTool2" Summary = "testJiao2" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>13
</Menu>14
<Menu ContentText = "Bing" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">15
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>16
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>17
</Menu>18
<Menu ContentText = "Sohu" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">19
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>20
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>21
</Menu>22
<Menu ContentText = "Sina" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">23
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>24
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>25
</Menu>26
<Menu ContentText = "XiaoMei" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">27
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>28
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>29
</Menu>30
<Menu ContentText = "Cnblogs" ToolTipText="testTool" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/">31
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>32
<SubMenu ContentText = "Home" ToolTipText="testTool3" Summary = "testJiao3" SummaryImageUri = "SilverlightImg.jpg" NavigateUri = "http://www.cnblogs.com/cshop/"/>33
</Menu>34
</Entity>效果图
项目结构图
