xml序列化

        /// <summary>
        /// 序列化
        /// </summary>
        /// <param name="obj">实体类对象</param>
        /// <param name="filename">文件路径</param>
        public static void Save(object obj, string filename)
        {
            FileStream fs = null;
            // serialize it...
            try
            {
                fs = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.ReadWrite);
                XmlSerializer serializer = new XmlSerializer(obj.GetType());
                serializer.Serialize(fs, obj);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (fs != null)
                    fs.Close();
            }

        }

注意：

1.须将web.config内compilation的debug属性设为true： 

<compilation debug="true" targetFramework="4.0" />

2.文件路径为文件绝对物理路径