修改了Dialog的调用方式，和实现了添加设备添加到侧边菜单中

ViewModels/MainViewModel.cs

@@ -1,8 +1,10 @@
 using System.Collections.ObjectModel;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
+using CommunityToolkit.Mvvm.Messaging;
 using PMSWPF.Data.Entities;
 using PMSWPF.Data.Repositories;
+using PMSWPF.Message;
 using PMSWPF.Models;
 using PMSWPF.Services;
 
@@ -16,20 +18,34 @@ public partial class MainViewModel : ViewModelBase
     [ObservableProperty]
     private ObservableCollection<MenuBean> _menus;
 
+    private readonly MenuRepository _menuRepository;
+
     public MainViewModel(NavgatorServices navgatorServices)
     {
         _navgatorServices = navgatorServices;
+        _menuRepository = new MenuRepository();
         _navgatorServices.OnViewModelChanged += () => { CurrentViewModel = _navgatorServices.CurrentViewModel; };
         CurrentViewModel = new HomeViewModel();
         CurrentViewModel.OnLoaded();
+        
+        WeakReferenceMessenger.Default.Register<UpdateMenuMessage>( this,UpdateMenu);
+        
     }
 
+    private async void UpdateMenu(object recipient, UpdateMenuMessage message)
+    {
+       await  LoadMenu();
+    }
 
 
     public override async void OnLoaded()
-    { 
-        MenuRepositories mr = new MenuRepositories();
-       var menuList= await mr.GetMenu();
-       Menus=new ObservableCollection<MenuBean>(menuList);
+    {
+        await LoadMenu();
+    }
+
+    private async Task LoadMenu()
+    {
+        var menuList= await _menuRepository.GetMenu();
+        Menus=new ObservableCollection<MenuBean>(menuList);
     }
 }