1     /// <summary>
 2     /// 視圖模型基類
 3     /// </summary>
 4     public abstract class BaseViewModel : BindableBase
 5     {
 6         private DelegateCommand _loadCommand;
 7         protected IEventAggregator EventAggregator { get; } //事件聚合器
 8         protected IRegionManager RegionManager { get; } // 區(qū)域管理器
 9         public DelegateCommand LoadCommand => _loadCommand ??= new(OnLoad); //界面加載命令
10 
11         public BaseViewModel()
12         {
13             RegionManager = ContainerLocator.Current.Resolve<IRegionManager>();
14             EventAggregator = ContainerLocator.Current.Resolve<IEventAggregator>();
15         }
16 
17         /// <summary>
18         /// 界面加載時(shí)，由Loaded事件觸發(fā)
19         /// </summary>
20         protected virtual void OnLoad()
21         {
22         }
23 
24         /// <summary>
25         /// 根據(jù)區(qū)域名稱查找視圖
26         /// </summary>
27         /// <param name="regionName">區(qū)域名稱</param>
28         protected TView TryFindView<TView>(string regionName) where TView : class
29         {
30             return RegionManager.Regions[regionName].Views
31                      .Where(v => v.GetType() == typeof(TView))
32                      .FirstOrDefault() as TView;
33         }
34     }

 1     [Module(ModuleName = "ShellModule", OnDemand = true)]
 2     public class ShellModule : IModule
 3     {
 4         public void OnInitialized(IContainerProvider containerProvider)
 5         {
 6             var regionManager = containerProvider.Resolve<IRegionManager>();
 7             regionManager.RegisterViewWithRegion(ShellRegionNames.SideMenuContentRegion, typeof(SideMenuContent)); // 注冊側(cè)邊菜單內(nèi)容視圖
 8             regionManager.RegisterViewWithRegion(ShellRegionNames.TabPagesContentRegion, typeof(TabPagesContent)); // 注冊Tab頁面內(nèi)容視圖
 9         }
10 
11         public void RegisterTypes(IContainerRegistry containerRegistry)
12         {
13         }
14     }

 1 <unity:PrismApplication
 2     x:Class="Lapis.Shell.App"
 3     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 4     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 5     xmlns:local="clr-namespace:Lapis.Shell"
 6     xmlns:unity="http://prismlibrary.com/">
 7     <Application.Resources>
 8         <ResourceDictionary>
 9             <ResourceDictionary.MergedDictionaries>
10                 <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/SkinDefault.xaml" />
11                 <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/Theme.xaml" />
12             </ResourceDictionary.MergedDictionaries>
13         </ResourceDictionary>
14     </Application.Resources>
15 </unity:PrismApplication>

 1     public partial class App : PrismApplication
 2     {
 3         protected override void ConfigureModuleCatalog(IModuleCatalog moduleCatalog)
 4         {
 5             base.ConfigureModuleCatalog(moduleCatalog);
 6             //
 7             moduleCatalog.AddModule<ShellModule>();      //添加宿主模塊
 8             moduleCatalog.AddModule<ModuleA.ModuleA>();  //添加業(yè)務(wù)模塊A
 9             moduleCatalog.AddModule<ModuleB.ModuleB>();  //添加業(yè)務(wù)模塊B
10         }
11 
12         protected override Window CreateShell()
13         {
14             return Container.Resolve<MainWindow>(); //返回主窗體
15         }
16 
17         protected override void RegisterTypes(IContainerRegistry containerRegistry)
18         {
19         }
20     }

 1     /// <summary>
 2     /// 側(cè)邊菜單內(nèi)容視圖模型
 3     /// </summary>
 4     public class SideMenuContentViewModel : BaseViewModel
 5     {
 6         private DelegateCommand<string> _menuSelectedCommand;
 7 
 8         private List<PageInfo> _pages = new()
 9         {
10             new PageInfo { Id = "1" ,RegionName = "RegionOne", DisplayName = "子菜單1" },
11             new PageInfo { Id = "2", RegionName = "RegionTwo", DisplayName = "子菜單2" },
12             new PageInfo { Id = "3", RegionName = "RegionThree", DisplayName = "子菜單3" },
13         };
14 
15         public DelegateCommand<string> MenuSelectedCommand => _menuSelectedCommand ??= new DelegateCommand<string>(ExecuteMenuSelectedCommand);
16 
17         private void ExecuteMenuSelectedCommand(string id)
18         {
19             var info = _pages.Find(x => x.Id == id);
20             if (info != null)
21             {
22                 EventAggregator.GetEvent<PageSelectedEvent>().Publish(info);
23             }
24         }
25     }

 1     /// <summary>
 2     /// Tab頁面內(nèi)容視圖模型
 3     /// </summary>
 4     public class TabPagesContentViewModel : BaseViewModel
 5     {
 6         private TabControl _tabControl;
 7 
 8         protected override void OnLoad()
 9         {
10             _tabControl = TryFindView<TabPagesContent>(ShellRegionNames.TabPagesContentRegion)?.FindName("tabControl") as TabControl;
11 
12             EventAggregator.GetEvent<PageSelectedEvent>().Subscribe(OnPageSelected);
13         }
14 
15         /// <summary>
16         /// 頁面選中事件處理
17         /// </summary>
18         /// <param name="page"></param>
19         private void OnPageSelected(PageInfo page)
20         {
21             try
22             {
23                 var existItem = FindItem(_tabControl, page.RegionName);
24                 if (existItem != null)
25                 {
26                     existItem.IsSelected = true;
27                 }
28                 else
29                 {
30                     // 創(chuàng)建頁面區(qū)域控件
31                     var pageContentControl = new ContentControl();
32                     pageContentControl.SetRegionName(page.RegionName);
33 
34                     var item = new TabItem
35                     {
36                         Name = page.RegionName,     // 區(qū)域名稱,如:RegionOne、RegionTwo
37                         Header = page.DisplayName,  // 頁面名稱
38                         IsSelected = true,
39                         Content = pageContentControl
40                     };
41 
42                     _tabControl.Items.Add(item);
43                 }
44             }
45             catch { }
46         }
47 
48         private TabItem FindItem(TabControl tc, string name)
49         {
50             foreach (TabItem item in tc.Items)
51             {
52                 if (item.Name == name)
53                 {
54                     return item;
55                 }
56             }
57             return null;
58         }
59     }