新增了UI节点

Library/Api/IEmbeddedContent.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.Library.Api
+{
+
+    /// <summary>
+    /// 流程中的控件
+    /// </summary>
+    public interface IFlowControl
+    {
+        /// <summary>
+        /// 节点执行事件
+        /// </summary>
+        void OnExecuting(object data);
+
+    }
+
+    /// <summary>
+    /// 自定义UI显示
+    /// </summary>
+    public interface IEmbeddedContent
+    {
+        /// <summary>
+        /// 获取用户控件（WPF）
+        /// </summary>
+        object GetUserControl();
+
+        /// <summary>
+        /// 获取窗体控件
+        /// </summary>
+        /// <returns></returns>
+        IFlowControl GetFlowControl();
+
+   
+    }
+
+}

Library/Enums/NodeType.cs

@@ -29,6 +29,12 @@ namespace Serein.Library
         /// </summary>
         Exit,
 
+        /// <summary>
+        /// <para>UI节点(每个节点只会执行一次对应的方法)</para>
+        /// <para>需要返回IEmbeddedContent接口</para>
+        /// <para>IEmbeddedContent接口实现由你决定</para>
+        /// </summary>
+        UI,
 
         /// <summary>
         /// <para>触发器节点，必须为标记在可异步等待的方法，建议与继承了 FlowTriggerk&lt;TEnum&gt; 的实例对象搭配使用</para>
@@ -88,6 +94,11 @@ namespace Serein.Library
         /// </summary>
         Flipflop,
 
+        /// <summary>
+        /// UI节点
+        /// </summary>
+        UI,
+
         /// <summary>
         /// 表达式操作节点
         /// </summary>

Library/FlowNode/DelegateDetails.cs

@@ -3,6 +3,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
+using System.Runtime.CompilerServices;
 using System.Text;
 using System.Threading.Tasks;
 using static Serein.Library.Utils.EmitHelper;
@@ -27,7 +28,7 @@ namespace Serein.Library
         }
 
 
-
+        
         /*/// <summary>
         /// 更新委托方法
         /// </summary>

Library/FlowNode/NodeModelBaseFunc.cs

@@ -379,8 +379,12 @@ namespace Serein.Library
             if (md.ActingInstance is null)
             {
                 md.ActingInstance = context.Env.IOC.Get(md.ActingInstanceType);
+                if (md.ActingInstance is null)
+                {
+                    md.ActingInstance = context.Env.IOC.Instantiate(md.ActingInstanceType);
+                }
             }
-
+            
             object[] args = await GetParametersAsync(context);
             var result = await dd.InvokeAsync(md.ActingInstance, args);
             return result;

Library/Utils/ArrayHelper.cs

@@ -9,8 +9,6 @@ namespace Serein.Library.Utils
     public class ArrayHelper
     {
 
-
-
         /// <summary>
         /// 数组尾部扩容
         /// </summary>

Library/Utils/DynamicObjectHelper.cs

@@ -8,6 +8,9 @@ using System.Threading.Tasks;
 
 namespace Serein.Library.Utils
 {
+    /// <summary>
+    /// 通过字典构造动态对象
+    /// </summary>
     public class DynamicObjectHelper
     {
         // 类型缓存，键为类型的唯一名称（可以根据实际需求调整生成方式）

Library/Utils/ObjectConvertHelper.cs

@@ -16,7 +16,6 @@ namespace Serein.Library.Utils
     public static class ObjectConvertHelper
     {
        
-
         /// <summary>
         /// 父类转为子类
         /// </summary>