修改了logwindows输出，避免高频输出时卡死。修改了流程运行上下文，使节点具备终止分支运行的能力。

WorkBench.Remote/Node/View/NodeControlBase.cs

@@ -0,0 +1,61 @@
+using Serein.Library.Api;
+using Serein.Library.Entity;
+using Serein.NodeFlow.Base;
+using Serein.WorkBench.Node.ViewModel;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+using System.Windows.Controls;
+using System.Windows.Media;
+
+namespace Serein.WorkBench.Node.View
+{
+
+    /// <summary>
+    /// 节点控件基类（控件）
+    /// </summary>
+    public abstract class NodeControlBase : UserControl, IDynamicFlowNode
+    {
+        public NodeControlViewModelBase ViewModel { get; set; }
+
+
+        protected NodeControlBase()
+
+        {
+            this.Background = Brushes.Transparent;
+        }
+        protected NodeControlBase(NodeControlViewModelBase viewModelBase)
+        {
+            ViewModel = viewModelBase;
+            this.Background = Brushes.Transparent;
+        }
+    }
+
+
+
+  
+
+
+
+
+
+    public class FLowNodeObObservableCollection<T> : ObservableCollection<T>
+    {
+
+        public void AddRange(IEnumerable<T> items)
+        {
+            foreach (var item in items)
+            {
+                this.Items.Add(item);
+            }
+            OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add));
+        }
+    }
+}
+
+
+
+
+
+