SilverLight实现全屏模式与嵌入模式的切换

Silverlight 有两种模式：第一种为嵌入式，第二种为全屏模式。

前台代码：

<UserControl x:Class="SilverlightApplication1.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400" HorizontalAlignment="Center">

    <Grid x:Name="LayoutRoot" Background="White">
        <Button Height="150" Content="嵌入模式" Name="button1" Width="300" Click="button1_Click" FontSize="20"></Button>
    </Grid>
</UserControl>

后台代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Interop; //注意要引入这个命名空间

namespace SilverlightApplication1
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();

            //在全屏或嵌入之间切换时,会触发一个事件,可以利用这个事件进行一些操作
            Application.Current.Host.Content.FullScreenChanged += new EventHandler(Content_FullScreenChanged);
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            //实现全屏模式需要引用其页面宿主程序，并设置为true
            //Application.Current.Host.Content.IsFullScreen = true;

            //如果想实现单按钮的两种模式之间切换,如下设置就可以了
            Application.Current.Host.Content.IsFullScreen = !Application.Current.Host.Content.IsFullScreen;

            //或这样写
            //Content contentObject = Application.Current.Host.Content;
            //contentObject.IsFullScreen = !contentObject.IsFullScreen;
        }

        //全屏时触发的事件
        private void Content_FullScreenChanged(object sender, EventArgs e)
        {
            Content contentObject = Application.Current.Host.Content;
            if (contentObject.IsFullScreen)
            {
                button1.Content = "全屏模式";
            }
            else
            {
                button1.Content = "嵌入模式";
            }
        }

    }
}