添加项目文件。

VisionFrame.Base/Converter/BoolToBrushConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+using System.Windows.Media;
+
+namespace VisionFrame.Base.Converter
+{
+    public class BoolToBrushConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (bool.Parse(value.ToString()))
+                return Brushes.LawnGreen;
+            else return Brushes.ForestGreen;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return null;
+        }
+    }
+}

VisionFrame.Base/Converter/LocationConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Data;
+
+namespace VisionFrame.Base.Converter
+{
+    public class LocationConverter : IMultiValueConverter
+    {
+        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
+        {
+            double.TryParse(values[0].ToString(), out double w);
+            double.TryParse(values[1].ToString(), out double h);
+
+            double w1 = w * 2;
+            double h1 = h * 2;
+
+            return new Thickness((w - w1) / 2, (h - h1) / 2, 0, 0);
+        }
+
+        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
+        {
+            return null;
+        }
+    }
+}

VisionFrame.Base/Converter/NodeJsonConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using System.Threading.Tasks;
+
+namespace VisionFrame.Base.Converter
+{
+    public class NodeJsonConverter : JsonConverter<NodeModelBase>
+    {
+        class TypeInfoTemp
+        {
+            public string TypeInfo { get; set; }
+        }
+        // 字符串到对象实例的转换过程
+        public override NodeModelBase? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            string json = reader.GetString();// 包含程序信息
+
+            TypeInfoTemp ti = System.Text.Json.JsonSerializer.Deserialize<TypeInfoTemp>(json);
+            string[] type_info = ti.TypeInfo.Split(";");
+            Assembly assembly = Assembly.GetEntryAssembly();// 取当前执行的程序集
+            if (assembly.GetName().Name != type_info[0])
+            {
+                assembly = Assembly.LoadFile(Environment.CurrentDirectory + "/Activities/" + type_info[0] + ".dll");
+            }
+            // 最终要执的节点Model
+            Type type = assembly.GetType(type_info[1]);
+
+            NodeModelBase node = (NodeModelBase)System.Text.Json.JsonSerializer.Deserialize(json, type);
+            return node;
+        }
+
+        // 对象到Json字符串的转换过程
+        public override void Write(Utf8JsonWriter writer, NodeModelBase value, JsonSerializerOptions options)
+        {
+            // value--->Json
+            // writer--写
+            // 准备类型的记录
+            string type = value.GetType().FullName;
+            string assembly = value.GetType().Assembly.GetName().Name;
+            value.TypeInfo = assembly + ";" + type;
+
+            // 如果直接放value  会循环触发这个方法
+            // 用一个动态变量接收，
+            dynamic temp = value;
+            string json = System.Text.Json.JsonSerializer.Serialize(temp);
+            writer.WriteStringValue(json);
+        }
+    }
+}

VisionFrame.Base/Converter/SizeConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace VisionFrame.Base.Converter
+{
+    public class SizeConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            double r = 2;
+            if (parameter != null)
+            {
+                double.TryParse(parameter.ToString(), out r);
+            }
+            // 实际的宽高值    
+            // 将这个值乘2返回出去
+            if (value != null && double.TryParse(value.ToString(), out double new_value))
+                return new_value * r;
+
+            return value;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return null;
+        }
+    }
+}

VisionFrame.Base/Converter/StringToNodeConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+
+namespace VisionFrame.Base.Converter
+{
+    public class StringToNodeConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            string[] _info = value.ToString().Split(";");
+
+            Assembly assembly = Assembly.GetEntryAssembly();
+            Type type = assembly.GetType(_info[0]);
+            if (_info.Length == 2)
+            {
+                assembly =
+                    Assembly.LoadFile(Environment.CurrentDirectory + "/Activities/" + _info[0] + ".dll");
+                if (assembly == null) return null;
+
+                type = assembly.GetType(_info[1]);
+                if (type == null) return null;
+            }
+
+            object instance = Activator.CreateInstance(type);
+
+            Binding binding = new Binding("DataContext.AnchorDownCommand");
+            binding.RelativeSource = new RelativeSource() { AncestorType = typeof(ItemsControl) };
+            (instance as NodeBase).SetBinding(NodeBase.AnchorDownCommandProperty, binding);
+
+
+            binding = new Binding("DataContext.AnchorUpCommand");
+            binding.RelativeSource = new RelativeSource() { AncestorType = typeof(ItemsControl) };
+            (instance as NodeBase).SetBinding(NodeBase.AnchorUpCommandProperty, binding);
+
+            return instance;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return null;
+        }
+    }
+}