commit c54bdebe5915e6aaab31dcf7fb0fe9c637ad8377
Author: 230238001 <15151850021@126.com>
Date:   Sat May 2 10:18:00 2026 +0800

    Initial commit: UserStringProperty Rhino plugin
    
    - Rhino 8 C# plugin for managing Block UserString properties
    - XML template import with merge modes
    - WinForms UI for property editing
    - .NET Framework 4.8

diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,25 @@
+# Build results
+
+bin/
+obj/
+
+# Visual Studio
+.vs/
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Rider
+.idea/
+
+# VS Code
+.code/
+
+# Rhino plugin output (should be .rhp, not tracked)
+*.rhp
+*.dll
+
+# OS
+Thumbs.db
+.DS_Store
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
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+++ b/CHANGELOG.md
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+# 更新日志
+
+所有重要版本更新会记录在此文件。
+
+## [0.1.0] - 2026-05-01
+
+### 新增
+- 项目骨架创建（插件主类、命令入口）
+- XML 配置文件解析器
+- 动态表单 UI：根据 XML 生成 TextBox / ComboBox 控件
+- 支持 string 类型字段（TextBox）
+- 支持 list 类型字段（ComboBox 下拉选择）
+- 多 XML 模板支持：可同时加载多个 XML 文件
+- 四种导入合并模式：追加、替代、合并更新、智能合并
+- `XmlImportDialog`：导入时弹出模式选择对话框
+- 模板持久化：Rhino 重启后自动恢复已加载的模板
+- `TemplateManager`：管理模板生命周期和 index 文件
+- 默认 XML 模板内嵌在 DLL 中，首次启动自动提取
+- 命令名：`UserstringProperty`
+
+### 功能
+- 选择 Block 后弹出属性编辑窗口
+- 属性保存到 Rhino Block 的 UserString（键值对存储）
+- 分隔标题自动识别（属性名含 `---` 时显示为分组标题）
+
+### 文档
+- README、LICENSE、.gitignore、CONTRIBUTING、CHANGELOG
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diff --git a/CLAUDE.md b/CLAUDE.md
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+++ b/CLAUDE.md
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+> 本文件仅保留高优先级、易混淆、跨会话必须一致的约束。
+> 本文件必须极精简，占用大模型注意力视为失效。
+
+## 项目一句话
+
+Rhino 8 C# 插件（.rhp），管理 Block 的 UserString 属性，支持 XML 模板导入。
+
+## 自动化约定
+
+- 禁止自行 commit / push git，用户下达指令再执行
+- 完成任务后清理临时文件
+
+## 文档入口
+
+- PLAN.md：待办事项
+- CHANGELOG.md：版本记录
+- CLAUDE.md：仅包含本文件（不要混入项目说明）
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diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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+++ b/CONTRIBUTING.md
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+# 贡献指南
+
+欢迎提交 Issue 和 Pull Request！
+
+## 如何贡献
+
+### 报告问题
+
+发现 Bug 或有新功能想法？请先搜索 [Issues](https://gitea.com/user/project/issues) 确保不是重复提交，然后按以下格式描述：
+
+- **问题描述**：清晰说明问题或建议
+- **复现步骤**：如果是 Bug，列出具体步骤
+- **环境信息**：Rhino 版本、操作系统、.NET SDK 版本
+
+### 提交代码
+
+1. Fork 本项目
+2. 创建分支 (`git checkout -b feature/your-feature`)
+3. 确保代码符合项目风格，编译通过
+4. 提交时请写清楚改动内容和原因
+5. Push 到你的 Fork，发起 Pull Request
+
+### 代码规范
+
+- C# 代码遵循 [C# Coding Conventions](https://learn.microsoft.com/en-us/dotnet/csharp/fundamentals/coding-style/coding-conventions)
+- 公共方法需有 XML 注释
+- 新功能请附带测试或更新文档
+
+## 问题解答
+
+如有问题可以在 [Discussions](https://gitea.com/user/project/discussions) 中讨论。
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diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+MIT License
+
+Copyright (c) 2026
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
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diff --git a/PLAN.md b/PLAN.md
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+++ b/PLAN.md
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+# 待办事项
+
+## 插件开发
+
+- [ ] 为插件生成真实的 GUID 并配置到项目中
+  - 生成唯一的 GUID（不含全零值）
+  - 将 GUID 配置到 AssemblyInfo 或 csproj 中
+  - 确保插件在 Rhino 插件管理器中正确注册
+
+- [ ] 修复"重置模板"按钮的 bug
+  - 当前实现有 bug，需要排查并修复
+
+- [ ] 简化"导入 XML"的判断逻辑
+  - 当前分两段判断过于繁琐，合并为一段
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diff --git a/README.md b/README.md
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+++ b/README.md
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+# UserStringProperty
+
+Rhino 插件，用于根据用户自定义 XML 配置，给 Block 实例附加构件属性（UserString）。
+
+## 功能
+
+- 根据 XML 配置文件动态生成属性编辑界面
+- 支持 `string` 类型字段（TextBox）和 `list` 类型字段（ComboBox）
+- 自动保存到 Rhino Block 的 UserString
+- 支持多个 XML 模板同时加载、合并
+- 模板自动持久化，Rhino 重启后自动恢复
+- 导入时提供四种合并模式（追加、替代、合并更新、智能合并）
+
+## 安装
+
+### 编译
+
+```bash
+cd UserStringProperty
+dotnet build
+```
+
+输出：`UserStringProperty/bin/UserStringProperty.dll`
+
+### 加载到 Rhino
+
+1. 将 `bin/UserStringProperty.dll` 重命名为 `UserStringProperty.rhp`
+2. Rhino → `Options` → `Plug-ins` → `Install` → 选择 `.rhp` 文件
+
+### 使用
+
+1. 在 Rhino 中输入命令：`UserstringProperty`
+2. 选择要编辑的 Block 实例
+3. 默认模板首次启动自动加载；点 **加载XML** 导入自定义模板
+4. 在下拉框中选择属性集，编辑各字段值
+5. 点击 **保存**
+
+## 模板导入模式
+
+加载 XML 时，如果已有模板，会弹出对话框让选择导入模式：
+
+| 模式 | 说明 |
+|------|------|
+| 添加为新属性集 | 追加到现有列表末尾 |
+| 完全替代现有模板 | 清空所有现有属性集 |
+| 合并更新 | 同名属性集覆盖，其他保留 |
+| 智能合并 | 同名覆盖，同时追加新属性集 |
+
+## XML 配置格式
+
+插件根据 XML 动态生成 UI。示例参见 `Component_Property_base.xml` 和 `Component_Property_carbon.xml`。
+
+```xml
+<?xml version="1.0" encoding="utf-8"?>
+<cmig name="构件编码">
+  <propertyset name="构件属性-基础" exclusive="false">
+    <!-- string 类型 → TextBox -->
+    <property name="0-00-02-年代" type="string" default="PRC"/>
+
+    <!-- list 类型 → ComboBox -->
+    <property name="0-00-06-构件类型" type="list" default="DS-JG">
+      <option>DS-JG</option>
+      <option>DS-WH</option>
+      <option>DS-SB</option>
+    </property>
+
+    <!-- 分隔标题（default 值为一串 dash 且 type="string"） -->
+    <property name="0-01-00-构件基本属性" type="string" default="--------------------" />
+  </propertyset>
+</cmig>
+```
+
+### 字段类型
+
+| type | 控件 | 说明 |
+|------|------|------|
+| `string` | TextBox | 自由文本输入 |
+| `list` | ComboBox | 下拉选项（通过 `<option>` 定义） |
+
+### 分隔标题
+
+属性名的 `default` 值以 `---` 开头时（即 `default="--------------------"`），该属性显示为分组标题栏。
+
+## 模板存储
+
+已加载的 XML 模板会复制一份保存到插件目录，重启 Rhino 后自动恢复：
+
+```
+%APPDATA%\McNeel\Rhinoceros\8.0\plugins\UserStringProperty\
+├── template_index.txt   # 记录已加载的 XML 路径
+└── *.xml               # 模板副本
+```
+
+## 项目结构
+
+```
+UserStringProperty/
+├── CLAUDE.md                       # agent 指示（不要当作文档）
+├── PLAN.md                        # 待办事项与开发计划
+├── UserStringProperty.csproj
+├── UserStringProperty.cs          # 插件主类
+├── Core/
+│   ├── XmlPropertyConfig.cs       # XML 解析器
+│   └── TemplateManager.cs         # 模板管理与持久化
+├── Commands/
+│   └── CmdUserstringProperty.cs   # 命令入口
+├── UI/
+│   ├── MainDialog.cs              # 主窗口
+│   └── XmlImportDialog.cs         # 导入模式选择对话框
+└── Resources/
+    └── EmbeddedTemplates.cs       # 内嵌默认 XML 模板
+```
+
+## 环境要求
+
+- Rhino 8
+- .NET Framework 4.8
+- .NET SDK 8.0（编译用）
+
+## License
+
+MIT
\ No newline at end of file
diff --git a/UserStringProperty/Commands/CmdUserstringProperty.cs b/UserStringProperty/Commands/CmdUserstringProperty.cs
new file mode 100644
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--- /dev/null
+++ b/UserStringProperty/Commands/CmdUserstringProperty.cs
@@ -0,0 +1,43 @@
+using Rhino;
+using Rhino.Commands;
+using Rhino.DocObjects;
+using Rhino.Input;
+
+namespace UserStringProperty.Commands
+{
+    public class CmdUserstringProperty : Command
+    {
+        public CmdUserstringProperty()
+        {
+            Instance = this;
+        }
+
+        public static CmdUserstringProperty Instance { get; private set; }
+
+        public override string EnglishName => "UserstringProperty";
+
+        protected override Result RunCommand(RhinoDoc doc, RunMode mode)
+        {
+            var result = RhinoGet.GetOneObject(
+                "选择 Block 实例",
+                false,
+                ObjectType.InstanceReference,
+                out var objref);
+
+            if (result != Result.Success)
+                return result;
+
+            var instanceObject = objref.Object() as InstanceObject;
+            if (instanceObject == null)
+            {
+                RhinoApp.WriteLine("所选对象不是 Block 实例");
+                return Result.Failure;
+            }
+
+            var dialog = new UI.MainDialog(instanceObject);
+            dialog.ShowDialog();
+
+            return Result.Success;
+        }
+    }
+}
\ No newline at end of file
diff --git a/UserStringProperty/Core/TemplateManager.cs b/UserStringProperty/Core/TemplateManager.cs
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--- /dev/null
+++ b/UserStringProperty/Core/TemplateManager.cs
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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Xml.Linq;
+using Rhino;
+using UserStringProperty.Core;
+using UserStringProperty.Resources;
+using UserStringProperty.UI;
+
+namespace UserStringProperty
+{
+    public class TemplateManager
+    {
+        private static TemplateManager _instance;
+
+        // 当前加载的所有模板（合并后）
+        private List<XmlPropertyConfig> _configs = new List<XmlPropertyConfig>();
+        private List<string> _loadedPaths = new List<string>();
+
+        // 插件目录（存储模板副本）
+        private string _pluginFolder;
+
+        public static TemplateManager Instance
+        {
+            get
+            {
+                if (_instance == null)
+                    _instance = new TemplateManager();
+                return _instance;
+            }
+        }
+
+        public IReadOnlyList<string> LoadedPaths => _loadedPaths;
+        public bool IsLoaded => _configs.Count > 0 && _configs.Any(c => c.PropertySets.Count > 0);
+
+        public TemplateManager()
+        {
+            _pluginFolder = Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+                "McNeel", "Rhinoceros", "8.0", "plugins", "UserStringProperty"
+            );
+            if (!Directory.Exists(_pluginFolder))
+                Directory.CreateDirectory(_pluginFolder);
+        }
+
+        // 获取插件目录下的模板副本文件列表
+        public List<string> GetLocalTemplateFiles()
+        {
+            return Directory.GetFiles(_pluginFolder, "*.xml")
+                .OrderBy(f => File.GetCreationTime(f))
+                .ToList();
+        }
+
+        // 用户选择 XML 文件后的预处理——返回导入对话框让用户选择模式
+        public void PrepareImport(string filePath, List<PropertySet> existingSets, out XmlPropertyConfig incomingConfig)
+        {
+            incomingConfig = XmlPropertyConfig.Load(filePath);
+        }
+
+        // 执行导入
+        public void Import(string filePath, string cmigName, string propertysetName)
+        {
+            var config = XmlPropertyConfig.Load(filePath);
+
+            // 检查文件是否已存在
+            var fileName = config.GetStorageFileName(config.PropertySets.FirstOrDefault(p => p.Name == propertysetName) ?? config.PropertySets.First());
+            var destPath = Path.Combine(_pluginFolder, fileName);
+
+            if (File.Exists(destPath))
+            {
+                // 文件已存在，询问是否替换（对话框已在外面处理，这里直接覆盖）
+            }
+
+            // 提取指定的 propertset 并保存
+            var ps = config.PropertySets.FirstOrDefault(p => p.Name == propertysetName);
+            if (ps == null) return;
+
+            // 保存文件
+            var xmlContent = ExtractPropertySetXml(filePath, propertysetName);
+            if (!string.IsNullOrEmpty(xmlContent))
+            {
+                File.WriteAllText(destPath, xmlContent);
+                _loadedPaths.Add(destPath);
+            }
+
+            SaveIndex();
+        }
+
+        public void LoadFromFile(string filePath)
+        {
+            if (!File.Exists(filePath))
+                throw new FileNotFoundException($"XML 文件不存在: {filePath}");
+
+            if (_loadedPaths.Contains(filePath))
+                return;
+
+            var config = XmlPropertyConfig.Load(filePath);
+            _configs.Add(config);
+            _loadedPaths.Add(filePath);
+            SaveIndex();
+        }
+
+        public void LoadDefault()
+        {
+            _configs.Clear();
+            _loadedPaths.Clear();
+
+            // 确保插件目录存在
+            if (!Directory.Exists(_pluginFolder))
+                Directory.CreateDirectory(_pluginFolder);
+
+            // 如果 index 不存在，先提取默认模板
+            var indexPath = GetIndexFilePath();
+            if (!File.Exists(indexPath))
+            {
+                EmbeddedTemplates.ExtractToFolder(_pluginFolder);
+            }
+
+            // 加载 index 中记录的路径（这些路径指向插件目录副本）
+            if (File.Exists(indexPath))
+            {
+                var lines = File.ReadAllLines(indexPath);
+                foreach (var line in lines)
+                {
+                    var trimmed = line.Trim();
+                    if (!string.IsNullOrEmpty(trimmed) && File.Exists(trimmed))
+                    {
+                        try
+                        {
+                            var config = XmlPropertyConfig.Load(trimmed);
+                            if (config.PropertySets.Count > 0)
+                            {
+                                _configs.Add(config);
+                                _loadedPaths.Add(trimmed);
+                            }
+                        }
+                        catch { }
+                    }
+                }
+            }
+
+            // 扫描插件目录下所有 XML，检查是否有未加载的文件（防止有模板被复制进去但不在 index）
+            var existingFiles = Directory.GetFiles(_pluginFolder, "*.xml");
+            foreach (var file in existingFiles)
+            {
+                if (_loadedPaths.Contains(file))
+                    continue;
+
+                try
+                {
+                    var config = XmlPropertyConfig.Load(file);
+                    if (config.PropertySets.Count > 0)
+                    {
+                        _configs.Add(config);
+                        _loadedPaths.Add(file);
+                    }
+                }
+                catch { }
+            }
+
+            // 如果没有任何模板，重新提取并重试
+            if (_configs.Count == 0)
+            {
+                EmbeddedTemplates.ExtractToFolder(_pluginFolder);
+                foreach (var file in Directory.GetFiles(_pluginFolder, "*.xml"))
+                {
+                    try
+                    {
+                        var config = XmlPropertyConfig.Load(file);
+                        if (config.PropertySets.Count > 0)
+                        {
+                            _configs.Add(config);
+                            _loadedPaths.Add(file);
+                        }
+                    }
+                    catch { }
+                }
+            }
+
+            // 保存 index（确保 index 与实际加载状态一致）
+            SaveIndex();
+        }
+
+        private string GetIndexFilePath()
+        {
+            return Path.Combine(_pluginFolder, "template_index.txt");
+        }
+
+        private void SaveIndex()
+        {
+            File.WriteAllLines(GetIndexFilePath(), _loadedPaths);
+        }
+
+        private void SaveTemplatesToPluginFolder()
+        {
+            // 按 [cmig name]-[propertyset name].xml 格式保存
+            foreach (var config in _configs)
+            {
+                foreach (var ps in config.PropertySets)
+                {
+                    var fileName = config.GetStorageFileName(ps);
+                    var destPath = Path.Combine(_pluginFolder, fileName);
+
+                    // 如果 config 有原始内容，使用原始内容；否则从 config 重新生成 XML
+                    if (!string.IsNullOrEmpty(config.SourcePath) && File.Exists(config.SourcePath))
+                    {
+                        // 从原始文件提取对应的 propertset 部分来保存
+                        var xmlContent = ExtractPropertySetXml(config.SourcePath, ps.Name);
+                        if (!string.IsNullOrEmpty(xmlContent))
+                            File.WriteAllText(destPath, xmlContent);
+                    }
+                }
+            }
+        }
+
+        // 从原始 XML 中提取指定 propertset 的完整 XML
+        private string ExtractPropertySetXml(string sourcePath, string propertysetName)
+        {
+            try
+            {
+                var doc = XDocument.Load(sourcePath);
+                var cmig = doc.Root;
+                if (cmig == null) return null;
+
+                var psElem = cmig.Elements("propertyset")
+                    .FirstOrDefault(p => p.Attribute("name")?.Value == propertysetName);
+
+                if (psElem == null) return null;
+
+                // 重新构建只包含这个 propertset 的 XML
+                var newDoc = new XDocument(new XDeclaration("1.0", "utf-8", null));
+                var newCmig = new XElement(cmig.Name, cmig.Attributes());
+                newCmig.Add(new XElement(psElem));
+                newDoc.Add(newCmig);
+
+                return newDoc.ToString();
+            }
+            catch
+            {
+                return null;
+            }
+        }
+
+        public void Clear()
+        {
+            _configs.Clear();
+            _loadedPaths.Clear();
+            var indexPath = GetIndexFilePath();
+            if (File.Exists(indexPath))
+                File.Delete(indexPath);
+        }
+
+        public List<PropertySet> GetAllPropertySets()
+        {
+            var result = new List<PropertySet>();
+            foreach (var config in _configs)
+            {
+                foreach (var ps in config.PropertySets)
+                {
+                    result.Add(ps);
+                }
+            }
+            return result;
+        }
+
+        public List<string> GetCmigNames()
+        {
+            return _configs.Select(c => c.CmigName).Distinct().ToList();
+        }
+
+        public List<string> GetPropertySetNames(string cmigName)
+        {
+            var config = _configs.FirstOrDefault(c => c.CmigName == cmigName);
+            if (config == null) return new List<string>();
+            return config.PropertySets.Select(ps => ps.Name).ToList();
+        }
+
+        public PropertySet GetPropertySet(string cmigName, string psName)
+        {
+            var config = _configs.FirstOrDefault(c => c.CmigName == cmigName);
+            if (config == null) return null;
+            return config.PropertySets.FirstOrDefault(ps => ps.Name == psName);
+        }
+
+        public List<string> GetPropertySetNames()
+        {
+            return GetAllPropertySets().Select(ps => ps.Name).ToList();
+        }
+
+        public string GetPluginFolderPath()
+        {
+            return _pluginFolder;
+        }
+    }
+}
\ No newline at end of file
diff --git a/UserStringProperty/Core/XmlPropertyConfig.cs b/UserStringProperty/Core/XmlPropertyConfig.cs
new file mode 100644
index 0000000..29c9a3b
--- /dev/null
+++ b/UserStringProperty/Core/XmlPropertyConfig.cs
@@ -0,0 +1,124 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Xml.Linq;
+
+namespace UserStringProperty.Core
+{
+    public class PropertyDefinition
+    {
+        public string Name { get; set; }
+        public string Type { get; set; }  // "string" or "list"
+        public string DefaultValue { get; set; }
+        public List<string> Options { get; set; } = new List<string>();
+        public bool IsSeparator => DefaultValue != null && DefaultValue.Length >= 10 && DefaultValue.All(c => c == '-') && Type == "string";
+
+        public PropertyDefinition Clone()
+        {
+            return new PropertyDefinition
+            {
+                Name = this.Name,
+                Type = this.Type,
+                DefaultValue = this.DefaultValue,
+                Options = new List<string>(this.Options)
+            };
+        }
+    }
+
+    public class PropertySet
+    {
+        public string Name { get; set; }
+        public string Picture { get; set; }
+        public bool Exclusive { get; set; }
+        public List<PropertyDefinition> Properties { get; set; } = new List<PropertyDefinition>();
+
+        public PropertySet Clone()
+        {
+            var clone = new PropertySet
+            {
+                Name = this.Name,
+                Picture = this.Picture,
+                Exclusive = this.Exclusive,
+                Properties = new List<PropertyDefinition>()
+            };
+            foreach (var p in this.Properties)
+                clone.Properties.Add(p.Clone());
+            return clone;
+        }
+    }
+
+    public class XmlPropertyConfig
+    {
+        public string CmigName { get; set; }  // cmig 的 name，即容器名称
+        public string Name { get; set; }
+        public string SourcePath { get; set; }
+        public List<PropertySet> PropertySets { get; set; } = new List<PropertySet>();
+
+        // 获取存储文件名：[cmig name]-[propertyset name].xml
+        public string GetStorageFileName(PropertySet ps)
+        {
+            return $"{CmigName}-{ps.Name}.xml";
+        }
+
+        public static XmlPropertyConfig Load(string filePath)
+        {
+            var config = new XmlPropertyConfig();
+
+            if (!System.IO.File.Exists(filePath))
+                return config;
+
+            var doc = XDocument.Load(filePath);
+            var cmig = doc.Root;
+            if (cmig == null) return config;
+
+            config.CmigName = cmig.Attribute("name")?.Value ?? "未命名";
+            config.Name = config.CmigName;
+            config.SourcePath = filePath;
+
+            foreach (var psElem in cmig.Elements("propertyset"))
+            {
+                var ps = new PropertySet
+                {
+                    Name = psElem.Attribute("name")?.Value ?? "",
+                    Picture = psElem.Attribute("picture")?.Value,
+                    Exclusive = psElem.Attribute("exclusive")?.Value == "true"
+                };
+
+                foreach (var propElem in psElem.Elements("property"))
+                {
+                    var prop = new PropertyDefinition
+                    {
+                        Name = propElem.Attribute("name")?.Value ?? "",
+                        Type = propElem.Attribute("type")?.Value ?? "string",
+                        DefaultValue = propElem.Attribute("default")?.Value
+                    };
+
+                    foreach (var opt in propElem.Elements("option"))
+                    {
+                        prop.Options.Add(opt.Value);
+                    }
+
+                    ps.Properties.Add(prop);
+                }
+
+                config.PropertySets.Add(ps);
+            }
+
+            return config;
+        }
+
+        public XmlPropertyConfig Clone()
+        {
+            var clone = new XmlPropertyConfig
+            {
+                CmigName = this.CmigName,
+                Name = this.Name,
+                SourcePath = this.SourcePath,
+                PropertySets = new List<PropertySet>()
+            };
+            foreach (var ps in this.PropertySets)
+                clone.PropertySets.Add(ps.Clone());
+            return clone;
+        }
+    }
+}
\ No newline at end of file
diff --git a/UserStringProperty/Resources/EmbeddedTemplates.cs b/UserStringProperty/Resources/EmbeddedTemplates.cs
new file mode 100644
index 0000000..1457840
--- /dev/null
+++ b/UserStringProperty/Resources/EmbeddedTemplates.cs
@@ -0,0 +1,130 @@
+using System.IO;
+
+namespace UserStringProperty.Resources
+{
+    public static class EmbeddedTemplates
+    {
+        public const string BaseXml = @"<?xml version=""1.0"" encoding=""utf-8""?>
+<cmig name=""构件属性"">
+
+  <propertyset name=""构件属性-基础"" exclusive=""false"" picture=""基础-任意实体.png"">
+    <property name=""0-00-00-构件编码属性"" type=""string"" default=""--------------------"" />
+    <property name=""0-00-01-星球"" type=""list"" default=""E"">
+      <option>E</option><option>M</option><option>V</option><option>J</option><option>S</option><option>U</option><option>N</option><option>L</option>
+    </property>
+    <property name=""0-00-02-年代"" type=""string"" default=""PRC""/>
+    <property name=""0-00-03-国家"" type=""string"" default=""156"" />
+    <property name=""0-00-04-地区"" type=""string"" default=""130723"" />
+    <property name=""0-00-05-项目楼栋"" type=""list"" default=""数据库自动生成后导入"" />
+    <property name=""0-00-06-构件类型"" type=""list"" default=""DS-JG"">
+      <option>DS-JG</option><option>DS-WH</option><option>DS-SB</option><option>DS-NZ</option><option>DS-HJ</option>
+      <option>DX-FH</option><option>DX-JG</option><option>DX-WH</option><option>DX-SB</option><option>DX-NZ</option>
+    </property>
+    <property name=""0-00-07-楼层号"" type=""string"" default=""1""/>
+    <property name=""0-00-08-标高信息"" type=""string"" default=""0.000""/>
+    <property name=""0-00-09-轴号"" type=""string"" default=""1/A""/>
+    <property name=""0-00-10-位置"" type=""string"" default=""H0V0""/>
+    <property name=""0-00-11-坐标"" type=""string"" default=""0,0,0""/>
+    <property name=""0-01-00-构件基本属性"" type=""string"" default=""--------------------"" />
+    <property name=""0-01-01-构件id"" type=""string"" default=""数据库自动生成后导入""/>
+    <property name=""0-01-02-构件名称"" type=""string"" default=""标准拱""/>
+    <property name=""0-01-03-所属项目名称"" type=""string"" default=""SFC""/>
+    <property name=""0-01-04-所属楼栋名称"" type=""string"" default=""SolarArk5.0""/>
+    <property name=""0-01-05-孪生属性"" type=""list"" default=""模拟"">
+      <option>模拟</option><option>实际</option>
+    </property>
+    <property name=""0-01-06-总体积"" type=""string"" default=""0.00""/>
+    <property name=""0-01-07-总体积单位"" type=""string"" default=""m³""/>
+    <property name=""0-01-08-材料（用,分隔）"" type=""string"" default=""钢,木""/>
+    <property name=""0-01-09-各材料体积"" type=""string"" default=""0,0""/>
+    <property name=""0-01-10-密度"" type=""string"" default=""0.00""/>
+    <property name=""0-01-11-密度单位"" type=""string"" default=""kg/m³""/>
+    <property name=""0-01-12-重量"" type=""string"" default=""0.00""/>
+    <property name=""0-01-13-重量单位"" type=""string"" default=""kg""/>
+    <property name=""0-01-14-表面积"" type=""string"" default=""0.00""/>
+    <property name=""0-01-15-结构层体积"" type=""string"" default=""0.00""/>
+    <property name=""0-02-00-性能属性"" type=""string"" default=""--------------------"" />
+    <property name=""0-02-01-热阻"" type=""string"" default=""0.00""/>
+    <property name=""0-02-02-热阻单位"" type=""string"" default=""m²·K/W""/>
+    <property name=""0-02-03-热容"" type=""string"" default=""0.00""/>
+    <property name=""0-02-04-热容单位"" type=""string"" default=""J/(kg·K)""/>
+    <property name=""1-00-00-材料制备阶段构件属性"" type=""string"" default=""--------------------"" />
+    <property name=""1-01-01-所属材料制备工序"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""1-01-02-材料制备序号"" type=""string"" default=""1"" />
+    <property name=""1-01-03-材料制备类型"" type=""string"" default=""钢材加工"" />
+    <property name=""1-01-04-材料制备用时（天）"" type=""string"" default=""15"" />
+    <property name=""1-01-05-材料制备开始日期"" type=""string"" default=""20260515"" />
+    <property name=""1-01-06-材料制备结束日期"" type=""string"" default=""20260530"" />
+    <property name=""2-00-00-生产制造阶段构件属性"" type=""string"" default=""--------------------"" />
+    <property name=""2-01-01-所属生产工序"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""2-01-02-生产序号"" type=""string"" default=""1"" />
+    <property name=""2-01-03-并行工序组"" type=""string"" default=""1"" />
+    <property name=""2-01-04-生产类型"" type=""string"" default=""焊接"" />
+    <property name=""2-01-05-生产用时（天）"" type=""string"" default=""30"" />
+    <property name=""2-01-06-生产开始日期"" type=""string"" default=""20260601"" />
+    <property name=""2-01-07-生产结束日期"" type=""string"" default=""20260701"" />
+    <property name=""3-00-00-物流运输阶段构件属性"" type=""string"" default=""--------------------""/>
+    <property name=""3-01-01-所属运输工序"" type=""string"" default=""数据库自动生成后导入""/>
+    <property name=""3-01-02-所属运输装备"" type=""string"" default=""苏A00000""/>
+    <property name=""3-01-03-运输方式"" type=""list"" default=""轻型汽油货车运输"">
+      <option>轻型汽油货车运输</option><option>中型汽油货车运输</option><option>重型汽油货车运输</option>
+    </property>
+    <property name=""3-01-04-运输用时（天）"" type=""string"" default=""3"" />
+    <property name=""3-01-05-运输开始日期"" type=""string"" default=""20260701"" />
+    <property name=""3-01-06-运输结束日期"" type=""string"" default=""20260705"" />
+    <property name=""4-00-00-装配施工阶段构件属性"" type=""string"" default=""--------------------""/>
+    <property name=""4-01-01-所属装配工序"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""4-01-02-装配序号"" type=""string"" default=""1"" />
+    <property name=""4-01-03-并行工序组"" type=""string"" default=""1"" />
+    <property name=""4-01-04-装配类型"" type=""string"" default=""吊装"" />
+    <property name=""4-01-05-装配用时"" type=""string"" default=""0:00"" />
+    <property name=""4-01-06-装配日期"" type=""string"" default=""20250710"" />
+    <property name=""5-00-00-运营维护阶段构件属性"" type=""string"" default=""--------------------"" />
+    <property name=""5-01-01-所属维护工序"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""6-00-00-改造再利用阶段构件属性"" type=""string"" default=""--------------------"" />
+    <property name=""6-01-01-所属改造工序"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""7-00-00-拆除再利用阶段构件属性"" type=""string"" default=""--------------------"" />
+    <property name=""7-01-01-所属拆除工序"" type=""string"" default=""数据库自动生成后导入"" />
+  </propertyset>
+
+</cmig>";
+
+        public const string CarbonXml = @"<?xml version=""1.0"" encoding=""utf-8""?>
+<cmig name=""构件碳排放属性"">
+
+  <propertyset name=""构件碳排放属性"" exclusive=""false"" picture=""碳排放.png"">
+    <property name=""1-02-00-材料制备碳排放属性"" type=""string"" default=""--------------------"" />
+    <property name=""1-02-01-构件材料制备碳排放因子"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""1-02-02-构件材料制备碳排放值"" type=""string"" default=""0.00"" />
+    <property name=""1-02-03-构件材料制备碳排放值单位"" type=""string"" default=""kgCO2e"" />
+    <property name=""2-02-00-生产制造碳排放属性"" type=""string"" default=""--------------------"" />
+    <property name=""2-02-01-构件生产制造碳排放因子"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""2-02-02-构件生产制造碳排放值"" type=""string"" default=""0.00"" />
+    <property name=""2-02-03-构件生产制造碳排放值单位"" type=""string"" default=""kgCO2e"" />
+    <property name=""2-02-04-生产制造产生废料比例"" type=""string"" default=""10%"" />
+    <property name=""2-02-05-生产制造废料碳排放因子"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""2-02-06-生产制造废料碳排放值"" type=""string"" default=""0.00"" />
+    <property name=""3-02-00-物流运输碳排放属性"" type=""string"" default=""--------------------"" />
+    <property name=""3-02-01-构件物流运输碳排放因子"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""3-02-02-构件物流运输碳排放值"" type=""string"" default=""0.00""/>
+    <property name=""3-02-03-构件物流运输碳排放值单位"" type=""string"" default=""kgCO2e"" />
+    <property name=""3-02-04-构件物流运输距离(km)"" type=""string"" default=""500""/>
+    <property name=""4-02-00-装配施工碳排放属性"" type=""string"" default=""--------------------"" />
+    <property name=""4-02-01-构件装配施工碳排放因子"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""4-02-02-构件装配施工碳排放值"" type=""string"" default=""0.00"" />
+    <property name=""4-02-03-构件装配施工碳排放值单位"" type=""string"" default=""kgCO2e"" />
+    <property name=""4-02-04-构件装配施工产生废料比例"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""4-02-05-构件装配施工废料碳排放因子"" type=""string"" default=""数据库自动生成后导入"" />
+    <property name=""4-02-06-构件装配施工单位工人数量"" type=""string"" default=""1"" />
+  </propertyset>
+
+</cmig>";
+
+        public static void ExtractToFolder(string folder)
+        {
+            if (!Directory.Exists(folder)) Directory.CreateDirectory(folder);
+            File.WriteAllText(Path.Combine(folder, "构件属性-构件属性-基础.xml"), BaseXml);
+            File.WriteAllText(Path.Combine(folder, "构件碳排放属性-构件碳排放属性.xml"), CarbonXml);
+        }
+    }
+}
\ No newline at end of file
diff --git a/UserStringProperty/UI/MainDialog.cs b/UserStringProperty/UI/MainDialog.cs
new file mode 100644
index 0000000..8efe3bc
--- /dev/null
+++ b/UserStringProperty/UI/MainDialog.cs
@@ -0,0 +1,517 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Windows.Forms;
+using Rhino.DocObjects;
+using UserStringProperty.Core;
+
+namespace UserStringProperty.UI
+{
+    public enum ApplyMode
+    {
+        Replace,  // 替代：清空现有属性后应用新模板
+        Append    // 附加：合并，重复 key 时询问
+    }
+
+    public enum ConflictResolution
+    {
+        ReplaceDuplicates,  // 替代重复的 key
+        SkipDuplicates      // 跳过重复的 key
+    }
+
+    public partial class MainDialog : Form
+    {
+        private InstanceObject _instanceObject;
+        private ComboBox _cmbCmig;
+        private ComboBox _cmbPropertySet;
+        private Panel _panelFields;
+        private Dictionary<string, Control> _fieldControls = new Dictionary<string, Control>();
+        private Button _btnSave;
+        private Button _btnCancel;
+        private Button _btnLoadXml;
+        private Label _lblTemplateInfo;
+
+        public MainDialog(InstanceObject instanceObject)
+        {
+            _instanceObject = instanceObject;
+            InitializeComponent();
+        }
+
+        private void InitializeComponent()
+        {
+            this.Text = "构件属性编辑";
+            this.Size = new Size(550, 580);
+            this.StartPosition = FormStartPosition.CenterParent;
+            this.FormBorderStyle = FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+
+            // Cmig 选择
+            var lblCmig = new Label
+            {
+                Text = "模板类型:",
+                Location = new Point(10, 10),
+                Size = new Size(80, 20)
+            };
+
+            _cmbCmig = new ComboBox
+            {
+                Location = new Point(95, 8),
+                Size = new Size(180, 20),
+                DropDownStyle = ComboBoxStyle.DropDownList
+            };
+            _cmbCmig.SelectedIndexChanged += CmbCmig_SelectedIndexChanged;
+            this.Controls.Add(lblCmig);
+            this.Controls.Add(_cmbCmig);
+
+            // PropertySet 选择
+            var lblPropertySet = new Label
+            {
+                Text = "属性模板:",
+                Location = new Point(285, 10),
+                Size = new Size(80, 20)
+            };
+
+            _cmbPropertySet = new ComboBox
+            {
+                Location = new Point(370, 8),
+                Size = new Size(160, 20),
+                DropDownStyle = ComboBoxStyle.DropDownList
+            };
+            _cmbPropertySet.SelectedIndexChanged += CmbPropertySet_SelectedIndexChanged;
+            this.Controls.Add(lblPropertySet);
+            this.Controls.Add(_cmbPropertySet);
+
+            _btnLoadXml = new Button
+            {
+                Text = "加载XML",
+                Location = new Point(10, 38),
+                Size = new Size(90, 25)
+            };
+            _btnLoadXml.Click += BtnLoadXml_Click;
+
+            var btnResetTemplate = new Button
+            {
+                Text = "重置模板",
+                Location = new Point(105, 38),
+                Size = new Size(90, 25)
+            };
+            btnResetTemplate.Click += (s, e) =>
+            {
+                TemplateManager.Instance.Clear();
+                RefreshCmigCombo();
+                UpdateTemplateInfo();
+            };
+
+            _lblTemplateInfo = new Label
+            {
+                Text = "",
+                Location = new Point(200, 41),
+                Size = new Size(330, 15),
+                ForeColor = Color.Gray,
+                Font = new System.Drawing.Font(Font.FontFamily, 8)
+            };
+
+            var lblFields = new Label
+            {
+                Text = "字段:",
+                Location = new Point(10, 75),
+                Size = new Size(60, 20)
+            };
+
+            _panelFields = new Panel
+            {
+                Location = new Point(10, 95),
+                Size = new Size(510, 370),
+                AutoScroll = true,
+                BorderStyle = BorderStyle.FixedSingle
+            };
+
+            _btnSave = new Button { Text = "写入属性", Location = new Point(370, 480), Size = new Size(90, 30) };
+            _btnSave.Click += BtnSave_Click;
+
+            _btnCancel = new Button { Text = "取消", Location = new Point(270, 480), Size = new Size(90, 30) };
+            _btnCancel.Click += (s, e) => this.Close();
+
+            this.Controls.AddRange(new Control[] {
+                _btnLoadXml, btnResetTemplate, _lblTemplateInfo,
+                lblCmig, _cmbCmig, lblPropertySet, _cmbPropertySet,
+                lblFields, _panelFields, _btnSave, _btnCancel
+            });
+
+            RefreshCmigCombo();
+            UpdateTemplateInfo();
+        }
+
+        private void UpdateTemplateInfo()
+        {
+            var tm = TemplateManager.Instance;
+            if (!tm.IsLoaded)
+            {
+                _lblTemplateInfo.Text = "未加载模板";
+            }
+            else
+            {
+                var paths = tm.LoadedPaths;
+                if (paths.Count == 1)
+                    _lblTemplateInfo.Text = $"已加载: {System.IO.Path.GetFileName(paths[0])}";
+                else
+                    _lblTemplateInfo.Text = $"已加载 {paths.Count} 个模板文件";
+            }
+        }
+
+        private void RefreshCmigCombo()
+        {
+            _cmbCmig.Items.Clear();
+            _cmbPropertySet.Items.Clear();
+
+            var cmigNames = TemplateManager.Instance.GetCmigNames();
+            if (cmigNames.Count == 0)
+            {
+                _cmbCmig.Items.Add("（请先加载XML模板）");
+                _cmbCmig.SelectedIndex = 0;
+                _cmbCmig.Enabled = false;
+                _cmbPropertySet.Enabled = false;
+            }
+            else
+            {
+                _cmbCmig.Items.AddRange(cmigNames.ToArray());
+                _cmbCmig.Enabled = true;
+                if (_cmbCmig.Items.Count > 0)
+                    _cmbCmig.SelectedIndex = 0;
+            }
+        }
+
+        private void RefreshPropertySetCombo(string cmigName)
+        {
+            _cmbPropertySet.Items.Clear();
+
+            var psNames = TemplateManager.Instance.GetPropertySetNames(cmigName);
+            if (psNames.Count == 0)
+            {
+                _cmbPropertySet.Items.Add("（无属性集）");
+                _cmbPropertySet.SelectedIndex = 0;
+                _cmbPropertySet.Enabled = false;
+            }
+            else
+            {
+                _cmbPropertySet.Items.AddRange(psNames.ToArray());
+                _cmbPropertySet.Enabled = true;
+                if (_cmbPropertySet.Items.Count > 0)
+                    _cmbPropertySet.SelectedIndex = 0;
+            }
+        }
+
+        private void CmbCmig_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            var cmigName = _cmbCmig.SelectedItem?.ToString();
+            if (!string.IsNullOrEmpty(cmigName))
+            {
+                RefreshPropertySetCombo(cmigName);
+            }
+        }
+
+        private void CmbPropertySet_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            var cmigName = _cmbCmig.SelectedItem?.ToString();
+            var psName = _cmbPropertySet.SelectedItem?.ToString();
+
+            if (string.IsNullOrEmpty(cmigName) || string.IsNullOrEmpty(psName))
+                return;
+
+            // 直接加载字段显示，让用户先看到/编辑现有内容
+            // 替代/附加逻辑在保存时才处理
+            BuildFieldsForPropertySet(cmigName, psName);
+        }
+
+        private ApplyMode AskApplyMode()
+        {
+            var result = MessageBox.Show(
+                "Block 已有属性。\n\n选择「是」替代现有属性（清空后应用新模板）\n选择「否」附加到现有属性（合并）",
+                "应用模式",
+                MessageBoxButtons.YesNoCancel,
+                MessageBoxIcon.Question);
+
+            if (result == DialogResult.Yes)
+                return ApplyMode.Replace;
+            else if (result == DialogResult.No)
+                return ApplyMode.Append;
+            else
+                return ApplyMode.Replace; // 默认替代
+        }
+
+        private ConflictResolution AskConflictResolution(List<string> duplicateKeys)
+        {
+            var suffix = duplicateKeys.Count > 5 ? "..." : "";
+            var result = MessageBox.Show(
+                $"发现 {duplicateKeys.Count} 个重复的属性 key：\n{string.Join(", ", duplicateKeys.Take(5))}{suffix}\n\n选择「是」替代这些 key 的值\n选择「否」跳过这些 key",
+                "属性冲突",
+                MessageBoxButtons.YesNoCancel,
+                MessageBoxIcon.Warning);
+
+            if (result == DialogResult.Yes)
+                return ConflictResolution.ReplaceDuplicates;
+            else
+                return ConflictResolution.SkipDuplicates;
+        }
+
+        private string GetExistingPropertyValue(string key)
+        {
+            var userStrings = _instanceObject.Attributes?.GetUserStrings();
+            if (userStrings != null && userStrings[key] != null)
+            {
+                return userStrings[key];
+            }
+            return null;
+        }
+
+        private void SetFieldValue(string key, string value)
+        {
+            if (_fieldControls.ContainsKey(key))
+            {
+                var ctrl = _fieldControls[key];
+                if (ctrl is ComboBox cmb)
+                {
+                    if (cmb.Items.Contains(value))
+                        cmb.SelectedItem = value;
+                }
+                else if (ctrl is TextBox txt)
+                {
+                    txt.Text = value;
+                }
+            }
+        }
+
+        private List<string> GetExistingPropertyKeys()
+        {
+            var keys = new List<string>();
+            var userStrings = _instanceObject.Attributes?.GetUserStrings();
+            if (userStrings != null)
+            {
+                keys.AddRange(userStrings.AllKeys);
+            }
+            return keys;
+        }
+
+        private void BtnLoadXml_Click(object sender, EventArgs e)
+        {
+            using (var dlg = new OpenFileDialog())
+            {
+                dlg.Filter = "XML文件|*.xml";
+                dlg.Title = "选择属性配置文件";
+                if (dlg.ShowDialog() == DialogResult.OK)
+                {
+                    var filePath = dlg.FileName;
+
+                    XmlPropertyConfig incomingConfig;
+                    try
+                    {
+                        incomingConfig = XmlPropertyConfig.Load(filePath);
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show($"XML 解析失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                        return;
+                    }
+
+                    if (incomingConfig.PropertySets.Count == 0)
+                    {
+                        MessageBox.Show("XML 中没有找到属性集", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                        return;
+                    }
+
+                    var pluginFolder = TemplateManager.Instance.GetPluginFolderPath();
+                    using (var importDlg = new XmlImportDialog(incomingConfig, pluginFolder))
+                    {
+                        if (importDlg.ShowDialog() == DialogResult.OK)
+                        {
+                            TemplateManager.Instance.Import(
+                                filePath,
+                                importDlg.SelectedCmigName,
+                                importDlg.SelectedPropertySetName
+                            );
+                            RefreshCmigCombo();
+                            UpdateTemplateInfo();
+                        }
+                    }
+                }
+            }
+        }
+
+        private void BuildFieldsForPropertySet(string cmigName, string psName)
+        {
+            _panelFields.Controls.Clear();
+            _fieldControls.Clear();
+
+            var ps = TemplateManager.Instance.GetPropertySet(cmigName, psName);
+            if (ps == null) return;
+
+            int y = 10;
+
+            foreach (var prop in ps.Properties)
+            {
+                if (prop.IsSeparator)
+                {
+                    var sep = new Label
+                    {
+                        Text = prop.Name,
+                        Location = new Point(10, y),
+                        Size = new Size(480, 20),
+                        Font = new System.Drawing.Font(Font.FontFamily, 9, FontStyle.Bold),
+                        ForeColor = Color.DarkBlue,
+                        BackColor = Color.AliceBlue
+                    };
+                    _panelFields.Controls.Add(sep);
+                    y += 25;
+                    continue;
+                }
+
+                // 只使用模板的默认值，不读取 block 现有属性
+                AddFieldControl(prop, y, prop.DefaultValue ?? "");
+                y += 28;
+            }
+        }
+
+        private void AddFieldControl(PropertyDefinition prop, int y, string value)
+        {
+            var lbl = new Label
+            {
+                Text = prop.Name,
+                Location = new Point(10, y),
+                Size = new Size(200, 20)
+            };
+            _panelFields.Controls.Add(lbl);
+
+            Control ctrl;
+            if (prop.Type == "list" && prop.Options.Count > 0)
+            {
+                var cmb = new ComboBox
+                {
+                    Location = new Point(220, y),
+                    Size = new Size(260, 20),
+                    DropDownStyle = ComboBoxStyle.DropDownList
+                };
+                cmb.Items.AddRange(prop.Options.ToArray());
+                cmb.SelectedItem = prop.Options.Contains(value) ? value : prop.DefaultValue;
+                ctrl = cmb;
+            }
+            else
+            {
+                var txt = new TextBox
+                {
+                    Location = new Point(220, y),
+                    Size = new Size(260, 20),
+                    Text = value
+                };
+                ctrl = txt;
+            }
+
+            _panelFields.Controls.Add(ctrl);
+            _fieldControls[prop.Name] = ctrl;
+        }
+
+        private void BtnSave_Click(object sender, EventArgs e)
+        {
+            var existingKeys = GetExistingPropertyKeys();
+
+            if (existingKeys.Count > 0)
+            {
+                // block 已有属性，询问 Replace 或 Append
+                var result = MessageBox.Show(
+                    "Block 已有属性。\n\n选择「是」替代现有属性（清空后应用新模板）\n选择「否」附加到现有属性（合并）",
+                    "应用模式",
+                    MessageBoxButtons.YesNoCancel,
+                    MessageBoxIcon.Question);
+
+                if (result == DialogResult.Cancel)
+                    return;
+
+                if (result == DialogResult.Yes)
+                {
+                    // 替代模式：清空所有现有属性
+                    ClearAllProperties();
+                }
+                else
+                {
+                    // 附加模式：检查重复 key
+                    var cmigName = _cmbCmig.SelectedItem?.ToString();
+                    var psName = _cmbPropertySet.SelectedItem?.ToString();
+                    if (!string.IsNullOrEmpty(cmigName) && !string.IsNullOrEmpty(psName))
+                    {
+                        var ps = TemplateManager.Instance.GetPropertySet(cmigName, psName);
+                        if (ps != null)
+                        {
+                            var duplicateKeys = ps.Properties
+                                .Where(p => existingKeys.Contains(p.Name) && !p.IsSeparator)
+                                .Select(p => p.Name)
+                                .ToList();
+
+                            if (duplicateKeys.Count > 0)
+                            {
+                                var suffix = duplicateKeys.Count > 5 ? "..." : "";
+                                var res = MessageBox.Show(
+                                    $"发现 {duplicateKeys.Count} 个重复的属性 key：\n{string.Join(", ", duplicateKeys.Take(5))}{suffix}\n\n选择「是」替代这些 key 的值\n选择「否」跳过这些 key",
+                                    "属性冲突",
+                                    MessageBoxButtons.YesNoCancel,
+                                    MessageBoxIcon.Warning);
+
+                                if (res == DialogResult.Cancel)
+                                    return;
+
+                                if (res == DialogResult.Yes)
+                                {
+                                    // 替代重复的 key - 不做特殊处理，直接保存会用模板值覆盖
+                                }
+                                else
+                                {
+                                    // 跳过重复的 key - 需要恢复原值后再保存
+                                    foreach (var key in duplicateKeys)
+                                    {
+                                        var existingValue = GetExistingPropertyValue(key);
+                                        if (!string.IsNullOrEmpty(existingValue))
+                                        {
+                                            SetFieldValue(key, existingValue);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+
+            // 保存字段
+            var attrs = _instanceObject.Attributes;
+
+            foreach (var kvp in _fieldControls)
+            {
+                string value = "";
+                if (kvp.Value is ComboBox cmb)
+                    value = cmb.SelectedItem?.ToString() ?? "";
+                else if (kvp.Value is TextBox txt)
+                    value = txt.Text;
+
+                attrs.SetUserString(kvp.Key, value);
+            }
+
+            Rhino.RhinoApp.WriteLine($"已保存 {_fieldControls.Count} 个属性到 Block");
+            this.Close();
+        }
+
+        private void ClearAllProperties()
+        {
+            var attrs = _instanceObject.Attributes;
+            if (attrs == null) return;
+
+            var userStrings = attrs.GetUserStrings();
+            if (userStrings == null) return;
+
+            // 清除所有现有属性
+            foreach (var key in userStrings.AllKeys)
+            {
+                attrs.SetUserString(key, null);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/UserStringProperty/UI/XmlImportDialog.cs b/UserStringProperty/UI/XmlImportDialog.cs
new file mode 100644
index 0000000..d877528
--- /dev/null
+++ b/UserStringProperty/UI/XmlImportDialog.cs
@@ -0,0 +1,227 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Windows.Forms;
+using UserStringProperty.Core;
+
+namespace UserStringProperty.UI
+{
+    public enum ImportMode
+    {
+        Append,           // 添加新的（如果同名已存在则提示替换）
+        Replace           // 完全替代现有同名属性集
+    }
+
+    public class XmlImportDialog : Form
+    {
+        private XmlPropertyConfig _incomingConfig;
+        private ComboBox _cmbCmig;
+        private ComboBox _cmbPropertySet;
+        private Label _lblIncomingInfo;
+        private Label _lblConflictWarning;
+        private Button _btnOK;
+        private Button _btnCancel;
+        private string _pluginFolder;
+
+        public ImportMode SelectedMode { get; private set; }
+        public string SelectedCmigName { get; private set; }
+        public string SelectedPropertySetName { get; private set; }
+        public bool ShouldReplace { get; private set; }
+
+        public XmlImportDialog(XmlPropertyConfig incoming, string pluginFolder)
+        {
+            _incomingConfig = incoming;
+            _pluginFolder = pluginFolder;
+            InitializeComponent();
+            UpdateConflictWarning();
+        }
+
+        private void InitializeComponent()
+        {
+            this.Text = "导入属性集";
+            this.Size = new Size(550, 350);
+            this.StartPosition = FormStartPosition.CenterParent;
+            this.FormBorderStyle = FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+
+            int y = 15;
+
+            // 第一段：选择属性集
+            var lblSection1 = new Label
+            {
+                Text = "第一段：选择属性集",
+                Location = new Point(15, y),
+                Size = new Size(200, 20),
+                Font = new Font(Font.FontFamily, 10, FontStyle.Bold)
+            };
+            this.Controls.Add(lblSection1);
+
+            y += 30;
+
+            // 选择 Cmig
+            var lblCmig = new Label
+            {
+                Text = "属性容器 (cmig):",
+                Location = new Point(15, y),
+                Size = new Size(120, 20)
+            };
+            this.Controls.Add(lblCmig);
+
+            _cmbCmig = new ComboBox
+            {
+                Location = new Point(140, y),
+                Size = new Size(380, 20),
+                DropDownStyle = ComboBoxStyle.DropDownList
+            };
+            _cmbCmig.Items.Add(_incomingConfig.CmigName);
+            _cmbCmig.SelectedIndex = 0;
+            this.Controls.Add(_cmbCmig);
+
+            y += 30;
+
+            // 选择 PropertySet
+            var lblPropertySet = new Label
+            {
+                Text = "属性集 (propertyset):",
+                Location = new Point(15, y),
+                Size = new Size(120, 20)
+            };
+            this.Controls.Add(lblPropertySet);
+
+            _cmbPropertySet = new ComboBox
+            {
+                Location = new Point(140, y),
+                Size = new Size(380, 20),
+                DropDownStyle = ComboBoxStyle.DropDownList
+            };
+            foreach (var ps in _incomingConfig.PropertySets)
+            {
+                _cmbPropertySet.Items.Add(ps.Name);
+            }
+            if (_cmbPropertySet.Items.Count > 0)
+                _cmbPropertySet.SelectedIndex = 0;
+            _cmbPropertySet.SelectedIndexChanged += (s, e) => UpdateConflictWarning();
+            this.Controls.Add(_cmbPropertySet);
+
+            y += 35;
+
+            // 分隔线
+            var separator = new Label
+            {
+                Text = "────────────────────────────────────────────────────",
+                Location = new Point(15, y),
+                Size = new Size(500, 15),
+                ForeColor = Color.Gray
+            };
+            this.Controls.Add(separator);
+
+            y += 25;
+
+            // 第二段：导入模式
+            var lblSection2 = new Label
+            {
+                Text = "第二段：检测冲突",
+                Location = new Point(15, y),
+                Size = new Size(200, 20),
+                Font = new Font(Font.FontFamily, 10, FontStyle.Bold)
+            };
+            this.Controls.Add(lblSection2);
+
+            y += 30;
+
+            // 即将导入的信息
+            _lblIncomingInfo = new Label
+            {
+                Text = "",
+                Location = new Point(15, y),
+                Size = new Size(500, 20),
+                ForeColor = Color.DarkGreen,
+                Font = new Font(Font.FontFamily, 9, FontStyle.Bold)
+            };
+            this.Controls.Add(_lblIncomingInfo);
+
+            y += 25;
+
+            // 冲突警告
+            _lblConflictWarning = new Label
+            {
+                Text = "",
+                Location = new Point(15, y),
+                Size = new Size(500, 30),
+                ForeColor = Color.DarkOrange
+            };
+            this.Controls.Add(_lblConflictWarning);
+
+            y += 40;
+
+            // 按钮
+            _btnOK = new Button
+            {
+                Text = "确定导入",
+                Location = new Point(350, y),
+                Size = new Size(90, 30)
+            };
+            _btnOK.Click += (s, e) =>
+            {
+                SelectedCmigName = _cmbCmig.SelectedItem?.ToString();
+                SelectedPropertySetName = _cmbPropertySet.SelectedItem?.ToString();
+                this.DialogResult = DialogResult.OK;
+                this.Close();
+            };
+            this.Controls.Add(_btnOK);
+
+            _btnCancel = new Button
+            {
+                Text = "取消",
+                Location = new Point(245, y),
+                Size = new Size(90, 30)
+            };
+            _btnCancel.Click += (s, e) =>
+            {
+                this.DialogResult = DialogResult.Cancel;
+                this.Close();
+            };
+            this.Controls.Add(_btnCancel);
+        }
+
+        private void UpdateConflictWarning()
+        {
+            var cmigName = _cmbCmig.SelectedItem?.ToString() ?? "";
+            var psName = _cmbPropertySet.SelectedItem?.ToString() ?? "";
+
+            if (string.IsNullOrEmpty(cmigName) || string.IsNullOrEmpty(psName))
+            {
+                _lblIncomingInfo.Text = "";
+                _lblConflictWarning.Text = "";
+                return;
+            }
+
+            var fileName = $"{cmigName}-{psName}.xml";
+            var existingPath = Path.Combine(_pluginFolder, fileName);
+            var exists = File.Exists(existingPath);
+
+            _lblIncomingInfo.Text = $"待导入: {fileName}";
+
+            if (exists)
+            {
+                _lblConflictWarning.Text = $"⚠ 文件已存在: {fileName}\n是否替换现有文件？";
+                _lblConflictWarning.ForeColor = Color.Red;
+            }
+            else
+            {
+                _lblConflictWarning.Text = $"✓ 文件不存在，将作为新文件保存";
+                _lblConflictWarning.ForeColor = Color.DarkGreen;
+            }
+        }
+
+        public bool CheckReplace()
+        {
+            var fileName = $"{SelectedCmigName}-{SelectedPropertySetName}.xml";
+            var existingPath = Path.Combine(_pluginFolder, fileName);
+            return File.Exists(existingPath);
+        }
+    }
+}
\ No newline at end of file
diff --git a/UserStringProperty/UserStringProperty.cs b/UserStringProperty/UserStringProperty.cs
new file mode 100644
index 0000000..198c49d
--- /dev/null
+++ b/UserStringProperty/UserStringProperty.cs
@@ -0,0 +1,32 @@
+using System;
+using Rhino;
+using Rhino.PlugIns;
+
+namespace UserStringProperty
+{
+    public class UserStringPropertyPlugin : PlugIn
+    {
+        public UserStringPropertyPlugin()
+        {
+            Instance = this;
+        }
+
+        public static UserStringPropertyPlugin Instance { get; private set; }
+
+        protected override LoadReturnCode OnLoad(ref string errorMessage)
+        {
+            // 首次启动时，从内嵌资源提取默认 XML 到插件目录
+            Resources.EmbeddedTemplates.ExtractToFolder(
+                TemplateManager.Instance.GetPluginFolderPath()
+            );
+
+            // 启动时自动加载已保存的模板
+            TemplateManager.Instance.LoadDefault();
+            return LoadReturnCode.Success;
+        }
+
+        protected override void OnShutdown()
+        {
+        }
+    }
+}
\ No newline at end of file
diff --git a/UserStringProperty/UserStringProperty.csproj b/UserStringProperty/UserStringProperty.csproj
new file mode 100644
index 0000000..cf848cf
--- /dev/null
+++ b/UserStringProperty/UserStringProperty.csproj
@@ -0,0 +1,52 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net48</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <OutputType>Library</OutputType>
+    <UseWindowsForms>true</UseWindowsForms>
+    <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+    <OutputPath>bin\</OutputPath>
+    <AssemblyName>UserStringProperty</AssemblyName>
+    <RootNamespace>UserStringProperty</RootNamespace>
+    <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
+    <StartupObject />
+    <Nullable>disable</Nullable>
+    <ImplicitUsings>disable</ImplicitUsings>
+    <!-- Rhino 插件配置 -->
+    <AssemblyName>UserStringProperty</AssemblyName>
+    <Version>1.0</Version>
+    <Company>YourCompany</Company>
+    <Description>User String Property Plugin</Description>
+  </PropertyGroup>
+
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Reference Include="RhinoCommon">
+      <HintPath>C:\Program Files\Rhino 8\System\RhinoCommon.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="Rhino.UI">
+      <HintPath>C:\Program Files\Rhino 8\System\Rhino.UI.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Xml.Linq" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Include="UserStringProperty.cs" />
+    <Compile Include="Commands\CmdUserstringProperty.cs" />
+    <Compile Include="UI\MainDialog.cs" />
+    <Compile Include="UI\XmlImportDialog.cs" />
+    <Compile Include="Core\XmlPropertyConfig.cs" />
+    <Compile Include="Core\TemplateManager.cs" />
+    <Compile Include="Resources\EmbeddedTemplates.cs" />
+  </ItemGroup>
+
+</Project>
\ No newline at end of file