using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;

namespace 多层级反序列
{
  [XmlType(TypeName = "config")]
  public class XmlConfig
  {
    [XmlArray("rules")]
    public List rules { get; set; }
  }

  [XmlType(TypeName = "rule")]
  public class rule
  {
    [XmlAttribute]
    public string name { get; set; }

    [XmlArray("params")]
    public List @params { get; set; }
  }

  [XmlType(TypeName = "item")]
  public class paramsItem
  {
    [XmlAttribute]
    public string name { get; set; }
    [XmlAttribute]
    public string type { get; set; }
    [XmlAttribute]
    public string pattern { get; set; }
  }

  class Program
  {
    static void Main(string[] args)
    {
      /*
      XmlConfig xml1 = DeserializeFromXml("default.xml");
      XmlConfig xml = new XmlConfig();
      SerializeToXml("default.xml", xml);
      */

      XmlConfig xml1 = DeserializeFromXml("default.xml");

    }

    /// 
    /// XML序列化某一类型到指定的文件
    /// 
    /// 
    /// 
    /// 
    public static void SerializeToXml(string filePath, T obj)
    {
      try
      {
        using (System.IO.StreamWriter writer = new System.IO.StreamWriter(filePath))
        {
          System.Xml.Serialization.XmlSerializer xs = new System.Xml.Serialization.XmlSerializer(typeof(T));
          xs.Serialize(writer, obj);
        }
      }
      catch (Exception ex)
      {
      }
    }
    /// 
    /// 从某一XML文件反序列化到某一类型
    /// 
    /// 待反序列化的XML文件名称
    /// 反序列化出的
    /// 
    public static T DeserializeFromXml(string filePath)
    {
      try
      {
        if (!System.IO.File.Exists(filePath))
          throw new ArgumentNullException(filePath + " not Exists");

        using (System.IO.StreamReader reader = new System.IO.StreamReader(filePath))
        {
          System.Xml.Serialization.XmlSerializer xs = new System.Xml.Serialization.XmlSerializer(typeof(T));
          T ret = (T)xs.Deserialize(reader);
          return ret;
        }
      }
      catch (Exception ex)
      {
        return default(T);
      }
    }
  }
}