自定义group完成

AIStudio.Wpf.DiagramDesigner.Demo/ViewModels/Nodes/CustomDefinedDesignerItemViewModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using AIStudio.Wpf.DiagramDesigner.Models;
+
+namespace AIStudio.Wpf.DiagramDesigner.Demo.ViewModels
+{
+    public class CustomDefinedDesignerItemViewModel : DesignerItemViewModelBase
+    {
+        public CustomDefinedDesignerItemViewModel() : this(null)
+        {
+
+        }
+
+        public CustomDefinedDesignerItemViewModel(IDiagramViewModel root) : base(root)
+        {
+
+        }
+
+        public CustomDefinedDesignerItemViewModel(IDiagramViewModel root, SelectableItemBase designer) : base(root, designer)
+        {
+
+        }
+
+        public CustomDefinedDesignerItemViewModel(IDiagramViewModel root, SerializableItem serializableItem, string serializableType) : base(root, serializableItem, serializableType)
+        {
+
+        }
+
+        public override SelectableItemBase GetSerializableObject()
+        {
+            return new DesignerItemBase(this, Answer);
+        }
+
+        protected override void Init(IDiagramViewModel root)
+        {
+            base.Init(root);
+
+            this.ItemWidth = 150;
+            this.ItemHeight = 80;
+            InitConnector();
+        }
+
+        protected override void InitConnector()
+        {
+            connectors.Add(new FullyCreatedConnectorInfo(this, ConnectorOrientation.Top));
+            connectors.Add(new FullyCreatedConnectorInfo(this, ConnectorOrientation.Bottom));
+        }
+
+        protected override void LoadDesignerItemViewModel(SelectableItemBase designerbase)
+        {
+            base.LoadDesignerItemViewModel(designerbase);
+
+            if (designerbase is DesignerItemBase designer)
+            {
+                this.Answer = designer.Reserve;
+            }
+        }
+
+        private string _answer;
+        public string Answer
+        {
+            get
+            {
+                return _answer;
+            }
+            set
+            {
+                SetProperty(ref _answer, value);
+            }
+        }
+    }
+}