在序列化XML时更改元素的顺序

我需要将Object序列化为XML并返回。 XML已修复，我无法更改它。 我在bookingList之后无法生成此结构。

如何将这些元素“分组”显示为LIST，并在元素列表之前保留 ＆ 。

看我的例子：

我需要的结构….

  1234567 Jil Sander 1    20  1234567890   2345678901     

结构我得到下面的C＃代码….

  1234567 Jil Sander 1     1234567890   2345678901    20    

C＃代码：

 using System; using System.Xml.Serialization; using System.Collections.Generic; namespace xml_objects_serials { public class bookings { public class nicexml { public string key_id { get; set; } public string surname { get; set; } public string name { get; set; } public int station_id { get; set; } public ownBookings ownBookings { get; set; } } public class ownBookings { public bookingList bookingList { get; set; } } public class bookingList { public string error { get; set; } public int counter { get; set; } public List booking= new List(); } public class booking { public int bookingID { get; set; } } } 

 public class bookingList { [XmlElement(Order = 1)] public string error { get; set; } [XmlElement(Order = 2)] public int counter { get; set; } [XmlElement(ElementName = "booking", Order = 3)] public List bookings = new List(); } public class booking { public int id { get; set; } } 

   sample 0  1   2   3