Prism 五Regions区域

标签：regionManager Windows xaml System Regions Prism 区域 using MainWindow

1、NuGet安装Prism.DryIoc，如下图。项目使用.NET8。

2、修改App.xaml代码如下。

<prism:PrismApplication x:Class="WpfApp1.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:WpfApp1"
             xmlns:prism="http://prismlibrary.com/">
    <Application.Resources>
         
    </Application.Resources>
</prism:PrismApplication>

3、修改App.xaml.cs代码如下。

using System.Configuration;
using System.Data;
using System.Windows;

namespace WpfApp1
{
    /// <summary>
    /// Interaction logic for App.xaml
    /// </summary>
    public partial class App : PrismApplication
    {
        protected override Window CreateShell()
        {
            return Container.Resolve<MainWindow>();
        }

        protected override void RegisterTypes(IContainerRegistry containerRegistry)
        {

        }
    }

}

4、修改MainWindow.xaml文件，在文件中添加xmlns:prism="http://prismlibrary.com/"引用，添加<ContentControl prism:RegionManager.RegionName="ContentRegion"/>，定义一个名称为ContentRegion的区域。代码如下。

<Window x:Class="WpfApp1.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:WpfApp1"
        xmlns:prism="http://prismlibrary.com/"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <StackPanel>
        <ContentControl prism:RegionManager.RegionName="ContentRegion"/>
    </StackPanel>
</Window>

5、Prism中不是所有的WPF控件都可以定义区域，比如当我们想使用StackPanel控件定义一个区域的话，就需要进行一下操作。

5.1、首先定义一个类StackPanelRegionAdapter.cs，代码如下。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows;

namespace WpfApp1
{
    public class StackPanelRegionAdapter : RegionAdapterBase<StackPanel>
    {
        public StackPanelRegionAdapter(IRegionBehaviorFactory regionBehaviorFactory)
            : base(regionBehaviorFactory)
        {

        }

        protected override void Adapt(IRegion region, StackPanel regionTarget)
        {
            region.Views.CollectionChanged += (s, e) =>
            {
                if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add)
                {
                    foreach (FrameworkElement element in e.NewItems)
                    {
                        regionTarget.Children.Add(element);
                    }
                }

                //handle remove
            };
        }

        protected override IRegion CreateRegion()
        {
            return new AllActiveRegion();
        }
    }
}

5.2、在App.xaml.cs对StackPanelRegionAdapter类进行注册，代码如下。

using System.Configuration;
using System.Data;
using System.Windows;
using System.Windows.Controls;

namespace WpfApp1
{
    /// <summary>
    /// Interaction logic for App.xaml
    /// </summary>
    public partial class App : PrismApplication
    {
        protected override Window CreateShell()
        {
            return Container.Resolve<MainWindow>();
        }

        protected override void RegisterTypes(IContainerRegistry containerRegistry)
        {

        }
        protected override void ConfigureRegionAdapterMappings(RegionAdapterMappings regionAdapterMappings)
        {
            base.ConfigureRegionAdapterMappings(regionAdapterMappings);
            regionAdapterMappings.RegisterMapping(typeof(StackPanel), Container.Resolve<StackPanelRegionAdapter>());
        }
    }

}

5.3、MainWindow.xaml引入与上面的方法一样，代码如下。下面的代码中定义了一个名为ContentRegion的区域。

<Window x:Class="WpfApp1.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:WpfApp1"
        xmlns:prism="http://prismlibrary.com/"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <StackPanel>
        <StackPanel prism:RegionManager.RegionName="ContentRegion" />
    </StackPanel>
</Window>

6、将用户控件添加到区域当中。

6.1.1、添加一个用户控件UCView1.xaml，代码如下。

<UserControl x:Class="WpfApp1.UCView1"
             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:WpfApp1"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <TextBlock Text="UCView1" FontSize="36"/>
    </Grid>
</UserControl>

6.1.2、MainWindow.xaml.cs中修改代码如下。

using System.Text;
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;

namespace WpfApp1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow(IRegionManager regionManager)
        {
            InitializeComponent();
            // 将用户控件UCView1注册到ContentRegion区域
            regionManager.RegisterViewWithRegion("ContentRegion", typeof(UCView1));
        }
    }
}

6.1.3、运行效果如下图所示。

7、通过按钮将用户控件添加到区域。

7,1、在 MainWindow.xaml中添加一个按钮，代码如下。

<Window x:Class="WpfApp1.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:WpfApp1"
        xmlns:prism="http://prismlibrary.com/"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <StackPanel>
        <Button Content="添加UCView" Click="Button_Click" HorizontalAlignment="Center" Width="200" Height="30" Margin="0,5,0,0"/>
        <StackPanel prism:RegionManager.RegionName="ContentRegion" />
    </StackPanel>
</Window>

7.2、MainWindow.xaml.cs代码修改如下。

using System.Text;
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;

namespace WpfApp1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        IContainerExtension _container;
        IRegionManager _regionManager;
        public MainWindow(IContainerExtension container, IRegionManager regionManager)
        {
            InitializeComponent();
            _container = container;
            _regionManager = regionManager;
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            var view = _container.Resolve<UCView1>();
            IRegion region = _regionManager.Regions["ContentRegion"];
            region.Add(view);
        }
    }
}

7.3、运行效果如下图。

8、区域中激活用户控件和停用用户控件。注意这里使用的区域是ContentControl而不是StackPanel。

8.1、MainWindow.xaml代码如下。

<Window x:Class="WpfApp1.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:WpfApp1"
        xmlns:prism="http://prismlibrary.com/"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <StackPanel>
        <Button Content="添加UCView" Click="Button_Click" HorizontalAlignment="Center" Width="200" Height="30" Margin="0,5,0,0" Tag="Active"/>
        <Button Content="停用UCView2" Click="Button_Click"  HorizontalAlignment="Center" Width="200" Height="30" Margin="0,5,0,0" Tag="Deactive"/>
        <ContentControl prism:RegionManager.RegionName="ContentRegion" />
    </StackPanel>
</Window>

8.2、MainWindow.xaml.cs代码如下

using Prism.Navigation.Regions;
using System.Windows;
using Prism.Ioc;
using System.Windows.Controls;

namespace WpfApp1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        IContainerExtension _container;
        IRegionManager _regionManager;
        IRegion _region;
        UCView1 _view1;
        public MainWindow(IContainerExtension container, IRegionManager regionManager)
        {
            InitializeComponent();
            _container = container;
            _regionManager = regionManager;

            this.Loaded += MainWindow_Loaded;
        }
        private void MainWindow_Loaded(object sender, RoutedEventArgs e)
        {
            _view1 = _container.Resolve<UCView1>();

            _region = _regionManager.Regions["ContentRegion"];

            _region.Add(_view1);
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            Button btn = sender as Button;

            if (btn.Tag.ToString() == "Deactive")
            {                
                _region.Deactivate(_view1);
            }
            else
            {
                _region.Activate(_view1);
            }
        }
    }
}

8.3、运行效果如下图。

标签：regionManager,Windows,xaml,System,Regions,Prism,区域,using,MainWindow
From： https://blog.csdn.net/xingchengaiwei/article/details/142380846

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