silverlight中如何方便在多个"场景"即Xaml文件之间随意切换?

注：以下方法是百度上搜索得来的，整理一下转发于此

步骤1.先在silverlight项目中新建一个接口文件IContent.cs，内容如下(namespace请各位根据自己的实际情况修改):

Code
using System.Windows;
namespace BookStore
{
public interface IContent
    {
        UIElement Content { get; set; }
    }
}

步骤2.建二个Xaml文件Test.xaml和Test2.Xaml

Test.Xaml完整内容如下:

Code
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="600" Height="400">



                这是Test.Xaml文件

Test.Xaml.Cs完整内容如下:

Code
using System.Windows;
using System.Windows.Controls;
namespace BookStore
{
//手动增加,IContent ，让Test实现IContent接口
public partial class Test : UserControl,IContent 
    {
public test()
        {
            InitializeComponent();
        }
private void Button_Click(object sender,RoutedEventArgs e)
        {
//实现切换(点击test.xaml上的按钮将切换到Test2"场景")
            (Application.Current.RootVisual as IContent).Content = new Test2();                       
        }
///

/// 增加一个Content属性
///

public new UIElement Content
        {
get
            {
return base.Content;
            }
set
            {
base.Content = value;
            }
        } 
    }
}

Test2.Xaml完整内容如下:

Code
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="600" Height="400">



                这是Test2.Xaml文件

Test2.Xaml.cs完整内容如下:(其实跟Test.Xaml.cs几乎一样)

Code
using System.Windows;
using System.Windows.Controls;
namespace BookStore
{
//手动增加,IContent ，让Test2实现IContent接口
public partial class Test2 : UserControl,IContent
    {
public Test2()
        {
            InitializeComponent();
        }
private void Button_Click(object sender,RoutedEventArgs e)
        {
//就这一行有点一不样(点击test2.xaml上的按钮将还回到Test"场景")
            (Application.Current.RootVisual as IContent).Content = new test();            
        }
///

/// 增加一个Content属性 ///

public new UIElement Content         { get             { return base.Content;             } set             { base.Content = value;             }         }      } }