实现了拖拽式设置方法调用顺序、方法入参参数来源

WorkBench/Node/View/ActionNodeControl.xaml.cs

@@ -1,21 +1,94 @@
 using Serein.NodeFlow.Model;
 using Serein.Workbench.Node.ViewModel;
 using System.Runtime.CompilerServices;
+using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Media;
 
 namespace Serein.Workbench.Node.View
 {
     /// <summary>
     /// ActionNode.xaml 的交互逻辑
     /// </summary>
-    public partial class ActionNodeControl : NodeControlBase
+    public partial class ActionNodeControl : NodeControlBase, INodeJunction
     {
         public ActionNodeControl(ActionNodeControlViewModel viewModel) : base(viewModel) 
         {
             DataContext = viewModel;
             InitializeComponent();
-            ExecuteJunctionControl.NodeGuid = viewModel.NodeModel.Guid;
+            ExecuteJunctionControl.MyNode.Guid = viewModel.NodeModel.Guid;
         }
 
+        /// <summary>
+        /// 入参控制点（可能有，可能没）
+        /// </summary>
+        JunctionControlBase INodeJunction.ExecuteJunction => this.ExecuteJunctionControl;
+        /// <summary>
+        /// 下一个调用方法控制点（可能有，可能没）
+        /// </summary>
+
+        JunctionControlBase INodeJunction.NextStepJunction => this.NextStepJunctionControl;
+
+        /// <summary>
+        /// 返回值控制点（可能有，可能没）
+        /// </summary>
+        JunctionControlBase INodeJunction.ReturnDataJunction => this.ResultJunctionControl;
+
+        /// <summary>
+        /// 方法入参控制点（可能有，可能没）
+        /// </summary>
+        JunctionControlBase[] INodeJunction.ArgDataJunction { get  {
+                if(argDataJunction == null)
+                {
+                    // 获取 MethodDetailsControl 实例
+                    var methodDetailsControl = this.MethodDetailsControl;
+                    argDataJunction = new JunctionControlBase[base.ViewModel.NodeModel.MethodDetails.ParameterDetailss.Length];
+
+                    var itemsControl = FindVisualChild<ItemsControl>(methodDetailsControl); // 查找 ItemsControl
+                    if (itemsControl != null)
+                    {
+                        var controls = new List<JunctionControlBase>();
+
+                        for (int i = 0; i < itemsControl.Items.Count; i++)
+                        {
+                            var container = itemsControl.ItemContainerGenerator.ContainerFromIndex(i) as FrameworkElement;
+                            if (container != null)
+                            {
+                                var argControl = FindVisualChild<ArgJunctionControl>(container);
+                                if (argControl != null)
+                                {
+                                    controls.Add(argControl); // 收集 ArgJunctionControl 实例
+                                }
+                            }
+                        }
+                        argDataJunction = controls.ToArray();
+                    }
+                }
+                return argDataJunction;
+            } }
+
+        /// <summary>
+        /// 方法入参控制点（可能有，可能没）
+        /// </summary>
+        private JunctionControlBase[] argDataJunction;
+
+        private T FindVisualChild<T>(DependencyObject parent) where T : DependencyObject
+        {
+            for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
+            {
+                var child = VisualTreeHelper.GetChild(parent, i);
+                if (child is T typedChild)
+                {
+                    return typedChild;
+                }
+
+                var childOfChild = FindVisualChild<T>(child);
+                if (childOfChild != null)
+                {
+                    return childOfChild;
+                }
+            }
+            return null;
+        }
     }
 }