添加项目文件。

AIStudio.Wpf.ADiagram/Demos/Flowchart/ViewModels/MiddleFlowNode.cs

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+using AIStudio.Wpf.ADiagram.Controls;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Util.DiagramDesigner;
+
+namespace AIStudio.Wpf.ADiagram.Demos.Flowchart
+{
+    public class MiddleFlowNode : FlowNode
+    {
+        public MiddleFlowNode() : base(NodeKinds.Middle)
+        {
+
+        }
+
+        public MiddleFlowNode(IDiagramViewModel parent, DesignerItemBase designer) : base(parent, designer)
+        {
+
+        }
+
+        private List<string> _userIds = new List<string>();
+        [Browsable(true)]
+        [StyleName("UserIdsStyle")]
+        public List<string> UserIds
+        {
+            get { return _userIds; }
+            set
+            {
+                SetProperty(ref _userIds, value);
+            }
+        }
+
+        private List<string> _roleIds = new List<string>();
+        [Browsable(true)]
+        [StyleName("RoleIdsStyle")]
+        public List<string> RoleIds
+        {
+            get { return _roleIds; }
+            set
+            {
+                SetProperty(ref _roleIds, value);
+            }
+        }
+
+        private string _actType;
+        [Browsable(true)]
+        [StyleName("ActTypeStyle")]
+        public string ActType
+        {
+            get { return _actType; }
+            set
+            {
+                SetProperty(ref _actType, value);
+            }
+        }
+    }
+}