fixed #192

src/Shared/HandyControlDemo_Shared/UserControl/Main/MainContent.xaml.cs

@@ -2,6 +2,7 @@
 using GalaSoft.MvvmLight.Messaging;
 using HandyControl.Tools.Extension;
 using HandyControlDemo.Data;
+using HandyControlDemo.ViewModel;
 
 
 namespace HandyControlDemo.UserControl
@@ -13,6 +14,8 @@ namespace HandyControlDemo.UserControl
     {
         private bool _isFull;
 
+        private string _currentDemoKey;
+
         public MainContent()
         {
             InitializeComponent();
@@ -43,5 +46,25 @@ namespace HandyControlDemo.UserControl
                 PresenterMain.Margin = new Thickness(0, 0, 0, 10);
             }
         }
+
+        private void DrawerCode_OnOpened(object sender, RoutedEventArgs e)
+        {
+            var typeKey = ViewModelLocator.Instance.Main.DemoInfoCurrent.Key;
+            var demoKey = ViewModelLocator.Instance.Main.DemoItemCurrent.TargetCtlName;
+            if (Equals(_currentDemoKey, demoKey)) return;
+            _currentDemoKey = demoKey;
+
+            if (ViewModelLocator.Instance.Main.SubContent is FrameworkElement demoCtl)
+            {
+                var xamlPath = $"UserControl/{typeKey}/{demoCtl.GetType().Name}.xaml";
+                var dc = demoCtl.DataContext;
+                var dcTypeName = dc.GetType().Name;
+                var vmPath = $"ViewModel/{dcTypeName}";
+
+                EditorXaml.Text = DemoHelper.GetCode(xamlPath);
+                EditorCs.Text = DemoHelper.GetCode($"{xamlPath}.cs");
+                EditorVm.Text = DemoHelper.GetCode($"{vmPath}.cs");
+            }
+        }
     }
 }