添加抽屉状态是打开则不能退出及操作其他菜单

DM_Weight/ViewModels/HomeWindowViewModel.cs

@@ -25,6 +25,8 @@ using System.Threading;
 using DM_Weight.msg;
 using log4net.Core;
 using DM_Weight.Services;
+using MaterialDesignThemes.Wpf;
+using System.Windows.Media;
 
 namespace DM_Weight.ViewModels
 {
@@ -43,6 +45,20 @@ namespace DM_Weight.ViewModels
         {
             get => loginMode == 2;
         }
+        private SolidColorBrush _colorBrush;
+
+        public SolidColorBrush SnackbarBackground
+        {
+            get => _colorBrush;
+            set => SetProperty(ref _colorBrush, value);
+        }
+        private ISnackbarMessageQueue _snackbarMessageQueue = new SnackbarMessageQueue(TimeSpan.FromSeconds(3));
+
+        public ISnackbarMessageQueue SnackbarMessageQueue
+        {
+            get => _snackbarMessageQueue;
+            set => SetProperty(ref _snackbarMessageQueue, value);
+        }
 
         private PremissionDm? _selectedMenu;
 
@@ -190,7 +206,14 @@ namespace DM_Weight.ViewModels
                 //        SelectedChildMenu = value.Children[0];
                 //    }
                 //}
+                if (!_portUtil.Operate)
                     SetProperty(ref _selectedMenu, value);
+                else
+                {
+                    logger.Info($"未关闭抽屉切换菜单");
+                    SnackbarBackground = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#b71c1c"));
+                    SnackbarMessageQueue.Enqueue("请关闭抽屉后再切换菜单");
+                }
             }
         }
 
@@ -205,6 +228,8 @@ namespace DM_Weight.ViewModels
             logger.Info("开始进入父菜单");
             //SelectedMenu = viewName.SelectedItem as PremissionDm;
             if (SelectedMenu != null && SelectedMenu.PremissionName == "退出")
+            {
+                if (!_portUtil.Operate)
                 {
                     logger.Info($"用户【{Operator?.Nickname}】退出登录");
                     Operator = null;
@@ -212,6 +237,14 @@ namespace DM_Weight.ViewModels
                     _regionManager.RequestNavigate("MainRegion", "LoginWindow");
                 }
                 else
+                {
+                    logger.Info($"未关闭抽屉操作退出");
+                    SnackbarBackground = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#b71c1c"));
+                    SnackbarMessageQueue.Enqueue("请关闭抽屉后再退出");
+                    return;
+                }
+            }
+            else
             {
                 //SelectedMenu.Children = SelectedMenu.Children;
                 //SelectedChildMenu = SelectedMenu.Children[0];

DM_Weight/Views/HomeWindow.xaml

@@ -150,6 +150,9 @@
 
         </Grid>
 
+        <materialDesign:Snackbar HorizontalAlignment="Center"  VerticalAlignment="Center"
+                Background="{Binding SnackbarBackground}"
+                MessageQueue="{Binding SnackbarMessageQueue}"/>
 
     </Grid>
 </UserControl>