/// <summary>
    /// XElement动态解析
    /// </summary>
    public class XElmentObject : DynamicObject
    { 
        private XElement _root;

        #region ///this[string name] 属性索引器
        /// <summary>
        /// 属性索引器
        /// </summary>
        /// <param name="name">属性的Name</param>
        /// <returns>属性的值</returns>
        public string this[string name]
        {
            get
            {
                if (_root == null)
                {
                    return String.Empty;
                }
                var attr = _root.Attribute(name);
                if (attr != null)
                {
                    return attr.Value;
                }
                else
                {
                    return String.Empty;
                }
            }
        }
        #endregion

        #region ///Load 加载xml文件
        public void Load(string str)
        {
            _root = XElement.Load(str);
        }
        #endregion

        #region ///Parse 序列化xml字符串
        public void Parse(string str)
        {
            _root = XElement.Parse(str);
        }
        #endregion

        #region ///Parse 序列化xml字符串
        public void Parse(XElement xe)
        {
            _root = xe;
        }
        #endregion

        #region ///ToString
        public override string ToString()
        {
            if(_root==null)
            {
                return String.Empty;
            }
            return _root.ToString();
        }
        #endregion

        #region ///TryGetMember
        /// <summary>
        /// 当获取非静态声明代码调用
        /// </summary>
        /// <param name="binder"></param>
        /// <param name="result"></param>
        /// <returns></returns>
        public override bool TryGetMember(GetMemberBinder binder,out object result)
        {
            result = String.Empty;
            //还没有匹配xml，返回空字符串
            if (_root == null)
            {
                result = String.Empty;
            }
            //获取子列表
            var xList = _root.Elements(binder.Name);
            //异常
            if (xList == null)
            {
                return true;
            }
            //子列表不为空
            if (xList.Any())
            {
                var list = new List<XElmentObject>();
                foreach (var item in xList)
                {
                    XElmentObject obj = new XElmentObject();
                    obj.Parse(item);
                    list.Add(obj);
                }
                result = list;
            }
            else
            {
                result = this[binder.Name];
            }
            return true;
        }
        #endregion
    }

xml文件

<?xml version="1.0" encoding="utf-8"?>
<Root>
  <persons>
    <Person Name="张三" />
    <Person Name="李四" />
  </persons>
</Root>

    class Program
    {
        static void Main(string[] args)
        {
            string path = @"Persons.xml";
            XElmentObject xml = new XElmentObject();
            xml.Load(path);
            dynamic root = xml;
            Console.WriteLine(root.Persons[0].Person[0].Name);
        }
    }

张三 请按任意键继续. . .