C#-Wpf-Prism.DryIoc-【2】区域

我的环境：VS2022、.Net6.0

【1】先完成基本的环境搭建，可参考 C#-WPF-Prism.DryIoc-【1】环境搭建 - 轻吟浅唱，蓦然花开 - 博客园 (cnblogs.com)

【2】在Views文件夹中添加三个UserControl 分别为View1、View2和View3并分别为三个UserControl添加一个文本控件加以区分

 

 【3】编辑MainView 添加三个按钮用来切换三个View并为这三个按钮绑定命令和参数，添加一个ContentControl承载这三个用户控件

<Window x:Class="Wpf_Prism.DryIoc_Region.Views.MainView"
        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:Wpf_Prism.DryIoc_Region.Views"
        xmlns:prism="http://prismlibrary.com/"
        prism:ViewModelLocator.AutoWireViewModel="True"
        mc:Ignorable="d"
        Title="MainView" Height="450" Width="800">
    <DockPanel>
        <UniformGrid Columns="3" DockPanel.Dock="Top">
            <Button Content="打开View1" Command="{Binding OpenViewCommand}" CommandParameter="View1"/>
            <Button Content="打开View2" Command="{Binding OpenViewCommand}" CommandParameter="View2"/>
            <Button Content="打开View3" Command="{Binding OpenViewCommand}" CommandParameter="View3"/>
        </UniformGrid>
        <!--#region 用来承载 View1 View2 View3 这三个不同的页面-->
        <ContentControl prism:RegionManager.RegionName="MainContentRegion"/>
    </DockPanel>
</Window>

【4】在App.xaml.cs中添加代码，把View1、View2和View3 分别注册为导航

using Prism.Ioc;
using System.Windows;
using Wpf_Prism.DryIoc_Region.Views;

namespace Wpf_Prism.DryIoc_Region
{
    /// <summary>
    /// Interaction logic for App.xaml
    /// </summary>
    public partial class App
    {
        protected override Window CreateShell()
        {
           return Container.Resolve<MainView>();
        }

        protected override void RegisterTypes(IContainerRegistry containerRegistry)
        {
            containerRegistry.RegisterForNavigation<View1>();
            containerRegistry.RegisterForNavigation<View2>();
            containerRegistry.RegisterForNavigation<View3>();
        }
    }
}

【5】编辑MainViewModel.cs 代码如下

using Prism.Commands;
using Prism.Regions;

namespace Wpf_Prism.DryIoc_Region.ViewModels
{
    public class MainViewModel
    {
        private readonly IRegionManager regionManager;

        public DelegateCommand<string> OpenViewCommand { get; private set; }
        public MainViewModel(IRegionManager regionManager)
        {
            this.regionManager = regionManager;
            OpenViewCommand = new DelegateCommand<string>(OpenView);
        }
        private void OpenView(string obj)
        {
            regionManager.Regions["MainContentRegion"].RequestNavigate(obj);
        }
    }
}

【6】启动项目，运行效果如下

完成，谢谢！