初始化

.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+.gitea/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+**/Properties/launchSettings.json
+
+# VS Code
+.vscode/
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Typescript v1 declaration files
+typings/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs

Wpf.NavigationDemo.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.11.35327.3
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Wpf.NavigationDemo", "Wpf.NavigationDemo\Wpf.NavigationDemo.csproj", "{BD0E0F51-1354-4D4D-8A54-C8475C51D100}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{BD0E0F51-1354-4D4D-8A54-C8475C51D100}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BD0E0F51-1354-4D4D-8A54-C8475C51D100}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BD0E0F51-1354-4D4D-8A54-C8475C51D100}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BD0E0F51-1354-4D4D-8A54-C8475C51D100}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {BB3C24C9-113E-4DE8-86B8-7BF13D2A5DAC}
+	EndGlobalSection
+EndGlobal

Wpf.NavigationDemo/App.xaml

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+<Application
+    x:Class="Wpf.NavigationDemo.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="clr-namespace:Wpf.NavigationDemo">
+    <Application.Resources />
+</Application>

Wpf.NavigationDemo/App.xaml.cs

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+using System.Configuration;
+using System.Data;
+using System.Diagnostics.CodeAnalysis;
+using System.Windows;
+using Wpf.NavigationDemo.Extensions;
+using Wpf.NavigationDemo.ViewModels;
+
+namespace Wpf.NavigationDemo
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+        public new static App Current => (App)Application.Current;
+
+        [MaybeNull]
+        public IServiceProvider ServiceProvider { get; private set; }
+
+
+        [MemberNotNull(nameof(ServiceProvider))]
+        protected override void OnStartup(StartupEventArgs e)
+        {
+            var services = new ServiceCollection();
+
+            services.AddSingleton(p => new MainWindow
+            {
+                DataContext = p.GetRequiredService<MainViewModel>()
+            });
+            services.AddSingleton<MainViewModel>();
+
+            services.AddSingleton<INavigationManager, DefaultNavigationManager>();
+            services.AddNavigationServices(typeof(App).Assembly);
+
+            ServiceProvider = services.BuildServiceProvider();
+
+            this.MainWindow = ServiceProvider.GetRequiredService<MainWindow>();
+
+            this.MainWindow.Show();
+        }
+
+    }
+
+}

Wpf.NavigationDemo/AssemblyInfo.cs

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+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None,            //where theme specific resource dictionaries are located
+                                                //(used if a resource is not found in the page,
+                                                // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly   //where the generic resource dictionary is located
+                                                //(used if a resource is not found in the page,
+                                                // app, or any theme specific resource dictionaries)
+)]

Wpf.NavigationDemo/DefaultNavigationManager.cs

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+namespace Wpf.NavigationDemo;
+
+public class DefaultNavigationManager(IServiceProvider provider, INavigationService service) : INavigationManager
+{
+    public INavigation NavigateTo(string route, NavigationOption options)
+    {
+        var pageType = service.GetPageType(route);
+
+        ArgumentNullException.ThrowIfNull(pageType);
+
+        return (INavigation)provider.GetRequiredService(pageType);
+
+    }
+}

Wpf.NavigationDemo/Extensions/NavigationRegisterServiceExtensions.cs

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+using Microsoft.Extensions.DependencyInjection.Extensions;
+using System.Reflection;
+using System.Text.RegularExpressions;
+
+namespace Wpf.NavigationDemo.Extensions;
+
+public static class NavigationRegisterServiceExtensions
+{
+    public static IServiceCollection AddNavigationServices(this IServiceCollection services, params Assembly[] assemblies)
+    {
+        if (assemblies.Length == 0)
+        {
+            assemblies = [Assembly.GetEntryAssembly() ?? Assembly.GetExecutingAssembly(), Assembly.GetCallingAssembly()];
+        }
+
+        // 注入对话框实例集合
+        var navigations = assemblies.Distinct().SelectMany(x => x.GetTypes()).Where(x =>
+            !x.IsAbstract
+            && !x.IsInterface
+            && !x.IsGenericType
+            && !x.IsNested
+            && x.GetInterfaces().Any(i => i.IsGenericType && i.GetGenericTypeDefinition() == typeof(INavigation<>)));
+
+
+        NavigationService navigationService = new NavigationService();
+
+        if (navigations?.Any() is true)
+        {
+
+            foreach (var navigation in navigations)
+            {
+                var interfaces = navigation.GetInterfaces();
+
+                var navigationInterfaceType = interfaces.Single(x => x.IsGenericType && x.GetGenericTypeDefinition() == typeof(INavigation<>));
+
+                services.TryAddTransient(navigationInterfaceType, navigation);
+
+                string pageRoute = navigation.Name.Replace("Page", "").Replace("View", "");
+
+                navigationService.AddPage(pageRoute, navigationInterfaceType);
+            }
+        }
+
+        services.AddSingleton<INavigationService>(navigationService);
+
+        return services;
+    }
+}

Wpf.NavigationDemo/GlobalUsings.cs

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+global using Microsoft.Extensions.DependencyInjection;
+global using CommunityToolkit.Mvvm.ComponentModel;
+global using CommunityToolkit.Mvvm.Input;
+global using System.Diagnostics.CodeAnalysis;
+global using System.Collections.ObjectModel;
+global using Wpf.NavigationDemo.Models;

Wpf.NavigationDemo/MainWindow.xaml

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+<Window
+    x:Class="Wpf.NavigationDemo.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:local="clr-namespace:Wpf.NavigationDemo"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:vm="clr-namespace:Wpf.NavigationDemo.ViewModels"
+    Title="MainWindow"
+    Width="800"
+    Height="450"
+    d:DataContext="{d:DesignInstance vm:MainViewModel}"
+    mc:Ignorable="d">
+
+    <Grid>
+
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition MaxWidth="200" />
+            <ColumnDefinition Width="10" />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+
+
+        <Border Grid.Column="0">
+            <ListBox ItemsSource="{Binding MenuItems}" SelectedItem="{Binding SelectedMenuItem}">
+                <ListBox.ItemContainerStyle>
+                    <Style TargetType="ListBoxItem">
+                        <Setter Property="Content" Value="{Binding Title}" />
+                    </Style>
+                </ListBox.ItemContainerStyle>
+            </ListBox>
+        </Border>
+
+        <GridSplitter Grid.Column="1" />
+
+        <Border Grid.Column="2">
+            <ContentControl Content="{Binding CurrentPage}" />
+        </Border>
+
+    </Grid>
+</Window>

Wpf.NavigationDemo/MainWindow.xaml.cs

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+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 Wpf.NavigationDemo
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+    }
+}

Wpf.NavigationDemo/Models/SidebarMenuItem.cs

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+namespace Wpf.NavigationDemo.Models;
+
+public record SidebarMenuItem(string Title, string Route);

Wpf.NavigationDemo/NavigationService.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Wpf.NavigationDemo;
+
+public class NavigationService : INavigationService
+{
+
+    private readonly Dictionary<string, Type> _pages = [];
+
+    internal void AddPage(string route, Type type)
+    {
+        _pages.TryAdd(route, type);
+    }
+
+    public Type GetPageType(string route)
+    {
+        _pages.TryGetValue(route, out var type);
+
+        return type!;
+    }
+}

Wpf.NavigationDemo/Primitives/INavigation.cs

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+namespace Wpf.NavigationDemo;
+
+public interface INavigation<out TViewModel> : INavigation
+{
+    TViewModel ViewModel { get; }
+}
+
+public interface INavigation;

Wpf.NavigationDemo/Primitives/INavigationManager.cs

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+namespace Wpf.NavigationDemo;
+
+public interface INavigationManager
+{
+    INavigation NavigateTo(string route, NavigationOption options);
+}

Wpf.NavigationDemo/Primitives/INavigationService.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Wpf.NavigationDemo;
+
+public interface INavigationService
+{
+    Type GetPageType(string route);
+}

Wpf.NavigationDemo/Primitives/NavigationOption.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Wpf.NavigationDemo;
+
+public class NavigationOption
+{
+}

Wpf.NavigationDemo/ViewModels/AboutPageViewModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Wpf.NavigationDemo.ViewModels;
+
+public class AboutPageViewModel
+{
+}

Wpf.NavigationDemo/ViewModels/HomePageViewModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Wpf.NavigationDemo.ViewModels;
+
+public class HomePageViewModel
+{
+}

Wpf.NavigationDemo/ViewModels/MainViewModel.cs

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+namespace Wpf.NavigationDemo.ViewModels;
+
+public partial class MainViewModel : ObservableObject
+{
+    [MaybeNull]
+    [ObservableProperty]
+    private INavigation _currentPage;
+
+    [ObservableProperty]
+    private ObservableCollection<SidebarMenuItem> _menuItems = [];
+
+    [ObservableProperty]
+    private SidebarMenuItem _selectedMenuItem;
+
+
+    private INavigationManager _navigationManager;
+    public MainViewModel(INavigationManager navigationManager)
+    {
+        _navigationManager = navigationManager;
+
+
+        MenuItems.Add(new SidebarMenuItem("首页", "Home"));
+        MenuItems.Add(new SidebarMenuItem("关于", "About"));
+
+        SelectedMenuItem = MenuItems.First();
+
+    }
+
+
+
+    partial void OnSelectedMenuItemChanged(SidebarMenuItem value)
+    {
+        // 预留Option 或为菜单定制 暂时未实现
+         CurrentPage = _navigationManager.NavigateTo(value.Route, new NavigationOption());
+    }
+
+}

Wpf.NavigationDemo/Views/Pages/AboutPage.xaml

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+<UserControl
+    x:Class="Wpf.NavigationDemo.Views.Pages.AboutPage"
+    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:local="clr-namespace:Wpf.NavigationDemo.Views.Pages"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    d:DesignHeight="450"
+    d:DesignWidth="800"
+    mc:Ignorable="d">
+    <Grid>
+        <TextBlock Text="关于页面" />
+    </Grid>
+</UserControl>

Wpf.NavigationDemo/Views/Pages/AboutPage.xaml.cs

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+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 Wpf.NavigationDemo.ViewModels;
+
+namespace Wpf.NavigationDemo.Views.Pages
+{
+    /// <summary>
+    /// AboutPage.xaml 的交互逻辑
+    /// </summary>
+    public partial class AboutPage : INavigation<AboutPageViewModel>
+    {
+        public AboutPage()
+        {
+            InitializeComponent();
+        }
+
+        public AboutPageViewModel ViewModel { get; }
+    }
+}

Wpf.NavigationDemo/Views/Pages/HomePage.xaml

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+<UserControl
+    x:Class="Wpf.NavigationDemo.Views.Pages.HomePage"
+    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:local="clr-namespace:Wpf.NavigationDemo.Views.Pages"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    d:DesignHeight="450"
+    d:DesignWidth="800"
+    mc:Ignorable="d">
+    <Grid>
+        <TextBlock>首页</TextBlock>
+    </Grid>
+</UserControl>

Wpf.NavigationDemo/Views/Pages/HomePage.xaml.cs

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+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 Wpf.NavigationDemo.ViewModels;
+
+namespace Wpf.NavigationDemo.Views.Pages
+{
+    /// <summary>
+    /// HomePage.xaml 的交互逻辑
+    /// </summary>
+    public partial class HomePage : INavigation<HomePageViewModel>
+    {
+        public HomePage()
+        {
+            InitializeComponent();
+        }
+
+        public HomePageViewModel ViewModel { get; }
+    }
+}

Wpf.NavigationDemo/Wpf.NavigationDemo.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.3.2" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+  </ItemGroup>
+
+</Project>