添加节点可删除

AIStudio.Wpf.DiagramDesigner/AttachedProperties/ConnectorStyleProps.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows;
+
+namespace AIStudio.Wpf.DiagramDesigner
+{
+    public static class ConnectorStyleProps
+    {
+        public static readonly DependencyProperty StyleProperty =
+            DependencyProperty.RegisterAttached("Style", typeof(Style), typeof(ConnectorStyleProps),
+                new FrameworkPropertyMetadata(default(Style)));
+
+        public static Style GetStyle(DependencyObject d)
+        {
+            return (Style)d.GetValue(StyleProperty);
+        }
+
+        public static void SetStyle(DependencyObject d, Style value)
+        {
+            d.SetValue(StyleProperty, value);
+        }
+
+    }
+}