06、ActivationDeactivation

　　1、将App.xaml中的StartupUri="MainWindow.xaml"删除。

　　2、使用NuGet安装Prism.Wpf、Prism.Core、Prism.Unity。

　　3、添加类“Bootstrapper”，编辑如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using Microsoft.Practices.Unity;
using ActivationDeactivation.Views;
using Prism.Unity;

namespace ActivationDeactivation
{
    class Bootstrapper:UnityBootstrapper
    {
        protected override DependencyObject CreateShell()
        {
            return Container.Resolve<MainWindow>();
        }

        protected override void InitializeShell()
        {
            Application.Current.MainWindow.Show();
        }
    }
}

　　4、创建文件夹Views，将MainWindow.xaml移动到此文件夹中。向Views文件夹中添加ViewA.xaml，ViewB.xaml。

　　

<Window x:Class="ActivationDeactivation.Views.MainWindow"
        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"
        xmlns:local="clr-namespace:ActivationDeactivation"
        xmlns:prism="http://prismlibrary.com/"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <DockPanel LastChildFill="True">
        <StackPanel>
            <Button Content="Activate ViewA" x:Name="btnViewA" Click="BtnViewA_OnClick"/>
            <Button Content="Deactivate ViewA" x:Name="btnDeactiveViewA" Click="BtnDeactiveViewA_OnClick"/>
            <Button Content="Activate ViewB" x:Name="btnViewB"  Click="BtnViewB_OnClick"/>
            <Button Content="Deactivate ViewB" x:Name="btnDeactiveViewB" Click="BtnDeactiveViewB_OnClick"/>
        </StackPanel>
        <ContentControl prism:RegionManager.RegionName="ContentRegion" HorizontalAlignment="Center" VerticalAlignment="Center" />
    </DockPanel>
</Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Practices.Unity;
using Prism.Regions;

namespace ActivationDeactivation.Views
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        private IUnityContainer _container;
        private IRegionManager _regionManager;
        private IRegion _region;

        private ViewA _viewA;
        private ViewB _viewB;
        public MainWindow(IUnityContainer unityContainer,IRegionManager regionManager)
        {
            InitializeComponent();
            _container = unityContainer;
            _regionManager = regionManager;
            

            this.Loaded += MainWindow_Loaded;
        }

        private void MainWindow_Loaded(object sender, RoutedEventArgs e)
        {
            _viewA = _container.Resolve<ViewA>();
            _viewB = _container.Resolve<ViewB>();

            _region = _regionManager.Regions["ContentRegion"];

            _region.Add(_viewA);
            _region.Add(_viewB);
        }

        private void BtnViewA_OnClick(object sender, RoutedEventArgs e)
        {
            _region.Activate(_viewA);
        }

        private void BtnDeactiveViewA_OnClick(object sender, RoutedEventArgs e)
        {
            _region.Deactivate(_viewA);
        }

        private void BtnViewB_OnClick(object sender, RoutedEventArgs e)
        {
            _region.Activate(_viewB);
        }

        private void BtnDeactiveViewB_OnClick(object sender, RoutedEventArgs e)
        {
            _region.Deactivate(_viewB);
        }
    }
}

<UserControl x:Class="ActivationDeactivation.Views.ViewA"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:ActivationDeactivation.Views"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
            <TextBlock Text="View A" FontSize="38"/>
    </Grid>
</UserControl>

<UserControl x:Class="ActivationDeactivation.Views.ViewB"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:ActivationDeactivation.Views"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
            <TextBlock Text="View B" FontSize="38"/>
    </Grid>
</UserControl>

　　5、修改App.xaml

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;

namespace ActivationDeactivation
{
    /// <summary>
    /// App.xaml 的交互逻辑
    /// </summary>
    public partial class App : Application
    {
        protected override void OnStartup(StartupEventArgs e)
        {
            base.OnStartup(e);

            var bootstrapper = new Bootstrapper();
            bootstrapper.Run();
        }
    }
}