diff --git a/DeedyDesigner/Deedy.Activity/ActionViewer.cs b/DeedyDesigner/Deedy.Activity/ActionViewer.cs
index d964b26..e26a4ad 100644
--- a/DeedyDesigner/Deedy.Activity/ActionViewer.cs
+++ b/DeedyDesigner/Deedy.Activity/ActionViewer.cs
@@ -734,7 +734,7 @@ namespace Deedy.Activity
         {
             this.IsDragging = true;
             ToolTipService.SetIsEnabled(this, false);
-
+            //TODO：执行拖放校验并设置「_CanDropInParent」与「_CanDropChild」两个临时控制字段
             base.OnDragEnter(e);
         }
         protected override void OnDragLeave(DragEventArgs e)
@@ -743,9 +743,9 @@ namespace Deedy.Activity
 
             base.OnDragLeave(e);
         }
-        protected internal bool _CanDropInParent = false;
-        protected internal bool _CanDropChild = false;
-        protected internal DropPlacement _DropPlacement = DropPlacement.Uncertain;
+        protected internal bool _CanDropInParent = false;       // 通过组装校验逻辑设置此字段
+        protected internal bool _CanDropChild = false;          // 通过组装校验逻辑设置此字段
+        protected internal DropPlacement _DropPlacement = DropPlacement.Uncertain;      // 用于最终放置逻辑
         protected override void OnDragOver(DragEventArgs e)
         {
             //HACK：这里要考虑父容器的布局方向
@@ -760,12 +760,12 @@ namespace Deedy.Activity
                 if (this._CanDropInParent && (currentPoint.Y < 10 || currentPoint.Y < 10))
                 {
                     this._DropPlacement = DropPlacement.BeforeMe;
-                    this.UpdateDragAdorner(this._DropPlacement);
+                    this.UpdateDragAdorner(this._DropPlacement, (this.ActionElement?.ParentElement as ICombinedElement)?.Direction);
                 }
                 else if (this._CanDropInParent && (hitElement.ActualHeight - currentPoint.Y < 10 || hitElement.ActualWidth - currentPoint.X < 10))
                 {
                     this._DropPlacement = DropPlacement.BehindMe;
-                    this.UpdateDragAdorner(this._DropPlacement);
+                    this.UpdateDragAdorner(this._DropPlacement, (this.ActionElement?.ParentElement as ICombinedElement)?.Direction);
                 }
                 else if (this._CanDropChild)
                 {