序列化

using System.Text;
using System.Xml;
using System.IO;
using System.Xml.Serialization;

  public static String SerializeToXml<T>(T arg)
    {
        XmlSerializer serializer = new XmlSerializer(arg.GetType());

        StringBuilder sb = new StringBuilder();
        XmlWriter writer = new XmlTextWriter(new StringWriter(sb));

        serializer.Serialize(writer, arg);
        writer.Close();

        return sb.ToString();
    }

    /**//// <summary>
    /// 从一个XML字符串中建立对像
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="xml"></param>
    /// <returns></returns>
    public static T CreateFromXml<T>(String xml) where T : class
    {
        XmlReader reader = new XmlTextReader(new StringReader(xml));
        try
        {
            XmlSerializer serializer = new XmlSerializer(typeof(T));

            Object theObject = serializer.Deserialize(reader);
            reader.Close();
            reader = null;

            return (T)theObject;
        }
        catch
        {
            if (reader != null)
            {
                reader.Close();
                reader = null;
            }
            return default(T);
        }

    }