diff --git a/AIStudio.Wpf.DiagramDesigner/Controls/DesignerCanvas.cs b/AIStudio.Wpf.DiagramDesigner/Controls/DesignerCanvas.cs
index e81edad..2b281ae 100644
--- a/AIStudio.Wpf.DiagramDesigner/Controls/DesignerCanvas.cs
+++ b/AIStudio.Wpf.DiagramDesigner/Controls/DesignerCanvas.cs
@@ -354,8 +354,8 @@ namespace AIStudio.Wpf.DiagramDesigner
 
         protected override void OnMouseMove(MouseEventArgs e)
         {
-            var focusedElement = Keyboard.FocusedElement;
-            Debug.WriteLine("focusedElement：" + focusedElement?.ToString());
+            //var focusedElement = Keyboard.FocusedElement;
+            //Debug.WriteLine("focusedElement：" + focusedElement?.ToString());
 
             base.OnMouseMove(e);
 
diff --git a/AIStudio.Wpf.DiagramDesigner/UserControls/LineControl.xaml.cs b/AIStudio.Wpf.DiagramDesigner/UserControls/LineControl.xaml.cs
index 4e9b590..1b194b1 100644
--- a/AIStudio.Wpf.DiagramDesigner/UserControls/LineControl.xaml.cs
+++ b/AIStudio.Wpf.DiagramDesigner/UserControls/LineControl.xaml.cs
@@ -42,7 +42,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             if (this.DataContext is ConnectionViewModel connector && connector.ColorViewModel != null)
             {
                 connector.ColorViewModel.PropertyChanged -= Connector_PropertyChanged;
-                connector.PropertyChanged += Connector_PropertyChanged;               
+                connector.ColorViewModel.PropertyChanged += Connector_PropertyChanged;               
             }
             this.ball.Visibility = Visibility.Collapsed;
             await DoAnimation();
@@ -68,13 +68,21 @@ namespace AIStudio.Wpf.DiagramDesigner
                 switch (connector.ColorViewModel.LineAnimation)
                 {
                     case LineAnimation.None: 
-                        _story?.Stop(); 
+                        _story?.Stop(this); 
                         ball.Visibility = Visibility.Collapsed; 
                         break;
-                    case LineAnimation.PathAnimation: 
+                    case LineAnimation.PathAnimation:
+                        if (connector.ColorViewModel.FillColor.BrushType == BrushType.SolidColorBrush && connector.ColorViewModel.FillColor.Color == Colors.White)
+                        {
+                            connector.ColorViewModel.FillColor.Color = Colors.Red;
+                        }
                         PathAnimation(connector.ColorViewModel.LineAnimationDuration); 
                         break;
                     case LineAnimation.DashAnimation:
+                        if (connector.ColorViewModel.LineDashStyle == LineDashStyle.None)
+                        {
+                            connector.ColorViewModel.LineDashStyle = LineDashStyle.Dash1;
+                        }
                         DashAnimation(connector.ColorViewModel.LineAnimationDuration);
                         break;
                 }
@@ -118,7 +126,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             animationAngle.Source = PathAnimationSource.Angle;
             animationAngle.Duration = animationX.Duration;
 
-            _story?.Stop();
+            _story?.Stop(this);
             _story = new Storyboard();
             _story.RepeatBehavior = RepeatBehavior.Forever;
             //story.AutoReverse = true;
@@ -132,7 +140,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             Storyboard.SetTargetProperty(animationY, new PropertyPath(TranslateTransform.YProperty));
             Storyboard.SetTargetProperty(animationAngle, new PropertyPath(RotateTransform.AngleProperty));
 
-            _story.Begin(this);
+            _story.Begin(this, true);
 
         }
 
@@ -148,11 +156,11 @@ namespace AIStudio.Wpf.DiagramDesigner
             Storyboard.SetTargetProperty(animation, new PropertyPath("StrokeDashOffset"));
             Storyboard.SetTarget(animation, this.line);
 
-            _story?.Stop();
+            _story?.Stop(this);
             _story = new Storyboard();
             _story.RepeatBehavior = RepeatBehavior.Forever;
             _story.Children.Add(animation);
-            _story.Begin(this);
+            _story.Begin(this, true);
         }
 
     }