XML序列化

Question

我有这样的情况：

[Serializable] 
[XmlType] 
public class MyMessage 
{ 
    [XmlElement] 
    public object data; 
} 
[Serializable] 
[XmlType(Namespace = "http://comp.com/types")] 
public class SomeClass 
{ 
    [XmlElement] 
    public string SomeString { get; set; } 

    [XmlElement] 
    public int SomeInt { get; set; } 
} 
[Serializable] 
[XmlType(Namespace = "http://comp.com/types")] 
public class OtherClass 
{ 
    [XmlElement] 
    public string OtherString { get; set; } 

    [XmlElement] 
    public int OtherInt { get; set; } 
} 

我需要得到这样的XML：

<data xsi:type="ns1:SomeClass" xmlns:ns1="http://comp.com/types"> 
    <SomeString>someValue</SomeString> 
    <SomeInt>10</SomeInt> 
</data> 

和：

<data xsi:type="ns1:OtherClass" xmlns:ns1="http://comp.com/types"> 
    <OtherString>someValue</OtherString> 
    <OtherInt>10</OtherInt> 
</data> 

我尝试添加到data场属性：

[XmlElement("data", typeof(SomeClass), Namespace = "http://comp.com/types")] 

这几乎是工作，但缺少xml属性type。如果我添加XmlElement对于第二类OtherClass，我得到错误：

The top XML element 'data' from namespace ' http://comp.com/types ' references distinct types ObjectModel.SomeClass and ObjectModel.OtherClass. Use XML attributes to specify another XML name or namespace for the element or types. Is it possible to solve this problem? This code use in SOAP service.

Answer 1

试试这个

[Serializable] 
    [XmlType] 
    public class MyMessage 
    { 
     [XmlElement] 
     public List<BaseClass> data; 
    } 
    [XmlInclude(typeof(SomeClass))] 
    [XmlInclude(typeof(OtherClass))] 

    [Serializable] 
    public class BaseClass 
    { 
    } 
    [Serializable] 
    [XmlType(Namespace = "http://comp.com/types")] 
    public class SomeClass : BaseClass 
    { 
     [XmlElement] 
     public string SomeString { get; set; } 

     [XmlElement] 
     public int SomeInt { get; set; } 
    } 
    [Serializable] 
    [XmlType(Namespace = "http://comp.com/types")] 
    public class OtherClass : BaseClass 
    { 
     [XmlElement] 
     public string OtherString { get; set; } 

     [XmlElement] 
     public int OtherInt { get; set; } 
    }