diff --git a/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml b/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml
index f9183960..7cbb4c85 100644
--- a/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml
+++ b/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml
@@ -3,6 +3,8 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:hc="https://handyorg.github.io/handycontrol"
              Background="White"
+             BorderThickness="1"
+             BorderBrush="{DynamicResource BorderBrush}"
              Width="320"
              Height="518">
     <hc:SimplePanel>
diff --git a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/NotificationDemoViewModel.cs b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/NotificationDemoViewModel.cs
index 8e005cf1..e5ed3be9 100644
--- a/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/NotificationDemoViewModel.cs
+++ b/src/Shared/HandyControlDemo_Shared/ViewModel/Controls/NotificationDemoViewModel.cs
@@ -21,7 +21,11 @@ namespace HandyControlDemo.ViewModel
         public ShowAnimation ShowAnimation
         {
             get => _showAnimation;
+#if netle40
+            set => Set(nameof(ShowAnimation) ,ref _showAnimation, value);
+#else
             set => Set(ref _showAnimation, value);
+#endif
         }
 
         private bool _staysOpen = true;
@@ -29,7 +33,11 @@ namespace HandyControlDemo.ViewModel
         public bool StaysOpen
         {
             get => _staysOpen;
+#if netle40
+            set => Set(nameof(StaysOpen) ,ref _staysOpen, value);
+#else
             set => Set(ref _staysOpen, value);
+#endif
         }
     }
 }
diff --git a/src/Shared/HandyControl_Shared/Controls/Other/Notification.cs b/src/Shared/HandyControl_Shared/Controls/Other/Notification.cs
index 11a05e84..9b911b21 100644
--- a/src/Shared/HandyControl_Shared/Controls/Other/Notification.cs
+++ b/src/Shared/HandyControl_Shared/Controls/Other/Notification.cs
@@ -1,6 +1,5 @@
 using System;
 using System.ComponentModel;
-using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Threading;
 using HandyControl.Data;
@@ -60,7 +59,7 @@ namespace HandyControl.Controls
                     notification.Top = topMax;
                     notification.BeginAnimation(LeftProperty, AnimationHelper.CreateAnimation(leftMax));
                     break;
-                case ShowAnimation.verticalMove:
+                case ShowAnimation.VerticalMove:
                     notification.Opacity = 1;
                     notification.Left = leftMax;
                     notification.Top = desktopWorkingArea.Height;
@@ -106,7 +105,7 @@ namespace HandyControl.Controls
                         _shouldBeClosed = true;
                     }
                     break;
-                case ShowAnimation.verticalMove:
+                case ShowAnimation.VerticalMove:
                     {
                         var animation = AnimationHelper.CreateAnimation(desktopWorkingArea.Height);
                         animation.Completed += Animation_Completed;
diff --git a/src/Shared/HandyControl_Shared/Data/Enum/ShowAnimation.cs b/src/Shared/HandyControl_Shared/Data/Enum/ShowAnimation.cs
index ba230aae..52e56c3f 100644
--- a/src/Shared/HandyControl_Shared/Data/Enum/ShowAnimation.cs
+++ b/src/Shared/HandyControl_Shared/Data/Enum/ShowAnimation.cs
@@ -4,7 +4,7 @@
     {
         None,
         HorizontalMove,
-        verticalMove,
+        VerticalMove,
         Fade
     }
 }
\ No newline at end of file