可以切换主题

AIStudio.Wpf.DiagramApp/ViewModels/MainWindowViewModel.cs

@@ -63,16 +63,16 @@ namespace AIStudio.Wpf.DiagramApp.ViewModels
             }
         }
 
-        private PageViewModel _diagramsViewModel;
+        private PageViewModel _pageViewModel;
         public PageViewModel PageViewModel
         {
             get
             {
-                return _diagramsViewModel;
+                return _pageViewModel;
             }
             set
             {
-                SetProperty(ref _diagramsViewModel, value);
+                SetProperty(ref _pageViewModel, value);
             }
         }
 

AIStudio.Wpf.DiagramApp/ViewModels/MindViewModel.cs

@@ -26,7 +26,7 @@ namespace AIStudio.Wpf.Flowchart
         {
             foreach (var vm in DiagramViewModels)
             {
-                vm.InitLayoutCommand.Execute(null);
+                vm.Init();
             }
         }
 

AIStudio.Wpf.DiagramApp/ViewModels/PageViewModel.cs

@@ -163,7 +163,7 @@ namespace AIStudio.Wpf.DiagramApp.ViewModels
             {
                 _service.SelectedItems = DiagramViewModel?.SelectedItems;
 
-                _service.SelectedItem = DiagramViewModel?.SelectedItems?.FirstOrDefault();
+                _service.SelectedItem = DiagramViewModel?.SelectedItem;
             }
 
             var property = sender.GetType().GetProperty(e.PropertyName);