对象预览器支持了值类型集合成员的简单预览

WorkBench/Themes/NodeTreeView.cs

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+using Serein.NodeFlow.Base;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Controls.Primitives;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows;
+using Serein.Library.Enums;
+
+namespace Serein.WorkBench.Themes
+{
+    public class NodeTreeView : TreeView
+    {
+        public NodeTreeView()
+        {
+            this.ItemContainerGenerator.StatusChanged += OnStatusChanged;
+        }
+
+        private void OnStatusChanged(object sender, EventArgs e)
+        {
+            if (this.ItemContainerGenerator.Status == GeneratorStatus.ContainersGenerated)
+            {
+                foreach (var item in Items)
+                {
+                    var treeViewItem = (TreeViewItem)this.ItemContainerGenerator.ContainerFromItem(item);
+                    if (treeViewItem != null)
+                    {
+                        treeViewItem.Expanded += TreeViewItem_Expanded;
+                        ApplyColor(treeViewItem, item as NodeModelBase);
+                    }
+                }
+            }
+        }
+
+        private void TreeViewItem_Expanded(object sender, RoutedEventArgs e)
+        {
+            if (sender is TreeViewItem item && item.DataContext is NodeModelBase node)
+            {
+                if (item.Items.Count == 0) // 懒加载
+                {
+                    foreach (var childNode in node.SuccessorNodes[ConnectionType.Upstream])
+                    {
+                        item.Items.Add(childNode);
+                    }
+                }
+            }
+        }
+
+        private void ApplyColor(TreeViewItem item, NodeModelBase node)
+        {
+            // 根据 ControlType 设置颜色
+            switch (node.ControlType)
+            {
+                case NodeControlType.Flipflop:
+                    item.Background = Brushes.LightGreen;
+                    break;
+                case NodeControlType.Action:
+                    item.Background = Brushes.LightCoral;
+                    break;
+                // 添加更多条件
+                default:
+                    item.Background = Brushes.Transparent;
+                    break;
+            }
+        }
+    }
+
+}