修改了很多

WorkBench/MainWindowViewModel.cs

@@ -1,6 +1,7 @@
 using Serein.Library.Api;
 using Serein.Library.Utils;
 using Serein.NodeFlow.Env;
+using System.ComponentModel;
 using System.Windows;
 
 namespace Serein.Workbench
@@ -9,9 +10,10 @@ namespace Serein.Workbench
     /// 工作台数据视图
     /// </summary>
     /// <param name="window"></param>
-    public class MainWindowViewModel
+    public class MainWindowViewModel: INotifyPropertyChanged
     {
         private readonly MainWindow window ;
+
         /// <summary>
         /// 运行环境
         /// </summary>
@@ -46,5 +48,54 @@ namespace Serein.Workbench
         }
 
 
+        private bool _isConnectionInvokeNode = false;
+        /// <summary>
+        /// 是否正在连接节点的方法调用关系
+        /// </summary>
+        public bool IsConnectionInvokeNode { get => _isConnectionInvokeNode; set
+            {
+                if (_isConnectionInvokeNode != value)
+                {
+                    SetProperty<bool>(ref _isConnectionInvokeNode, value);
+                }
+            }
+        }
+
+        private bool _isConnectionArgSouceNode = false;
+        /// <summary>
+        /// 是否正在连接节点的参数传递关系
+        /// </summary>
+        public bool IsConnectionArgSourceNode { get => _isConnectionArgSouceNode; set
+            {
+                if (_isConnectionArgSouceNode != value)
+                {
+                    SetProperty<bool>(ref _isConnectionArgSouceNode, value);
+                }
+            }
+        }
+
+
+        /// <summary>
+        /// 略
+        /// <para>此事件为自动生成</para>
+        /// </summary>
+        public event PropertyChangedEventHandler? PropertyChanged;
+        /// <summary>
+        /// 通知属性变更
+        /// </summary>
+        /// <typeparam name="T">类型</typeparam>
+        /// <param name="storage">绑定的变量</param>
+        /// <param name="value">新的数据</param>
+        /// <param name="propertyName"></param>
+        protected void SetProperty<T>(ref T storage, T value, [System.Runtime.CompilerServices.CallerMemberName] string propertyName = null)
+        {
+            if (Equals(storage, value))
+            {
+                return;
+            }
+
+            storage = value;
+            PropertyChanged?.Invoke(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
+        }
     }
 }