GIT练习

Library/DynamicFlow/NodeModel/SingleConditionNode.cs

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+using Serein.DynamicFlow.SerinExpression;
+using Serein.DynamicFlow.Tool;
+using System.Diagnostics;
+using System.Linq.Expressions;
+
+namespace Serein.DynamicFlow.NodeModel
+{
+    /// <summary>
+    /// 条件节点（用于条件控件）
+    /// </summary>
+    public class SingleConditionNode : NodeBase
+    {
+
+        /// <summary>
+        /// 是否为自定义参数
+        /// </summary>
+        public bool IsCustomData { get; set; }
+        /// <summary>
+        /// 自定义参数值
+        /// </summary>
+        public object? CustomData { get; set; }
+        /// <summary>
+        /// 条件表达式
+        /// </summary>
+        public string Expression { get; set; }
+
+        public override object? Execute(DynamicContext context)
+        {
+            // 接收上一节点参数or自定义参数内容
+            object? result;
+            if (IsCustomData)
+            {
+                result = CustomData;
+            }
+            else
+            {
+                result = PreviousNode?.FlowData;
+            }
+            FlowState = SerinConditionParser.To(result, Expression);
+            Console.WriteLine($"{result} {Expression}  -> " + FlowState);
+            return result;
+        }
+
+        //public override void Execute(DynamicContext context)
+        //{
+        //    CurrentState = Judge(context, base.MethodDetails);
+        //}
+
+        //private bool Judge(DynamicContext context, MethodDetails md)
+        //{
+        //    try
+        //    {
+        //        if (DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
+        //        {
+        //            object[] parameters = GetParameters(context, md);
+        //            var temp = del.DynamicInvoke(parameters);
+        //            //context.GetData(GetDyPreviousKey());
+        //            return (bool)temp;
+        //        }
+        //    }
+        //    catch (Exception ex)
+        //    {
+        //        Debug.Write(ex.Message);
+        //    }
+        //    return false;
+        //}
+
+
+    }
+
+
+}