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
<UserControl x:Class="BookStore.Test"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="600" Height="400">
<Grid x:Name="LayoutRoot" Background="White" >
<StackPanel Orientation="Vertical" HorizontalAlignment="Center" Margin="50" Background="AliceBlue" Width="200" Height="100">
<TextBlock TextAlignment="Center">
这是Test.Xaml文件
</TextBlock>
<Button Height="25" Width="150" Content="转到Test2.xaml" Click="Button_Click"></Button>
</StackPanel>

</Grid>
</UserControl>

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();
}

/// <summary>
/// 增加一个Content属性
/// </summary>
public new UIElement Content
{
get
{
return base.Content;
}
set
{
base.Content = value;
}
}

}
}

Test2.Xaml完整内容如下:


Code
<UserControl x:Class="BookStore.Test2"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="600" Height="400">
<Grid x:Name="LayoutRoot" Background="White" >
<StackPanel Orientation="Vertical" HorizontalAlignment="Center" Margin="50" Background="Beige" Width="200" Height="100">
<TextBlock TextAlignment="Center">
这是Test2.Xaml文件
</TextBlock>
<Button Height="25" Width="150" Content="转到Test.xaml" Click="Button_Click"></Button>
</StackPanel>

</Grid>
</UserControl>

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();
}

/// <summary>
/// 增加一个Content属性
/// </summary>
public new UIElement Content
{
get
{
return base.Content;
}
set
{
base.Content = value;
}
}
}
}

运行效果图如下：



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