Xmlserializer沒有序列化基類成員

Question

我在嘗試使用XmlSerializer進行日誌序列化時遇到了這個非常奇怪的問題。該代碼由wsdl.exe工具生成。這被序列化作爲被聲明爲類如下：

[System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "2.0.50727.3038")] 
[System.SerializableAttribute()] 
[System.Diagnostics.DebuggerStepThroughAttribute()] 
[System.ComponentModel.DesignerCategoryAttribute("code")] 
[System.Xml.Serialization.XmlTypeAttribute(Namespace = "xxxxx")] 
public partial class InheritedRequestA : BaseRequest 
{ 
} 

其他類也從BaseRequest繼承的系列化包括所有非繼承的成員，但沒有從BaseRequest公衆成員。 BaseRequest被聲明如下。

[System.Xml.Serialization.XmlIncludeAttribute(typeof(InheritedRequestA))] 
[System.Xml.Serialization.XmlIncludeAttribute(typeof(InheritedRequestB))] 
[System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "2.0.50727.3038")] 
[System.SerializableAttribute()] 
[System.Diagnostics.DebuggerStepThroughAttribute()] 
[System.ComponentModel.DesignerCategoryAttribute("code")] 
[System.Xml.Serialization.XmlTypeAttribute(Namespace = "xxxxx")] 
public partial class BaseRequest 
{ 
//members here 
} 

爲了序列的請求和響應一起，我寫了只包含一個請求對象和響應對象一個非常基本的包裝類。序列化代碼：爲何從基類繼承的公共屬性沒有得到連載

 XmlSerializer serializer = new XmlSerializer(typeof(Wrapper)); 
     string serializedObject = string.Empty; 
     using (MemoryStream stream = new MemoryStream()) 
     { 
      serializer.Serialize(stream, wrapper); 
      stream.Position = 0; 
      using (StreamReader reader = new StreamReader(stream)) 
      { 
       serializedObject = reader.ReadToEnd(); 
      } 
     } 

任何想法，將不勝感激。

編輯：這裏是包裝類。我已將它分成ActivatorWrapper和VersionRetrieverWrapper。

[Serializable] 
[XmlInclude(typeof(Wrapper))] 
[XmlInclude(typeof(ActivatorWrapper))] 
[XmlInclude(typeof(VersionRetrieverWrapper))] 
public class Wrapper 
{ 
} 

[Serializable] 
public class VersionRetrieverWrapper : Wrapper 
{ 
    public InheritedRequestA Request { get; set; } 
    public InheritedResponseA Response { get; set; } 
} 

Answer 1

你需要確保的公共成員BaseRequest分配給他們的值（無論是默認的構造函數，其聲明中，或在您的服務代碼）。如果不是，則XmlSerializer將忽略它們，除非它們都可以爲空（int? bool?）和將XML IsNullable屬性設置爲true（[XmlElement(IsNullable = true)]）。

Answer 2

只要請求/響應不爲空，這可以正常工作。這裏是一個工作示例應用程序：

class Program 
{ 
    static void Main(string[] args) 
    { 
     var wrapper = new VersionRetrieverWrapper(); 
     wrapper.Request = new InheritedRequestA(); 
     wrapper.Request.Member = "Request"; 
     wrapper.Response = new InheritedResponseA(); 
     wrapper.Response.Member = "Response"; 

     Console.WriteLine(Save(wrapper)); 
    } 

    public static string Save(Wrapper wrapper) 
    { 
     XmlSerializer serializer = new XmlSerializer(typeof(Wrapper)); 

     string serializedObject = string.Empty; 
     using (MemoryStream stream = new MemoryStream()) 
     { 
      serializer.Serialize(stream, wrapper); 
      stream.Position = 0; 
      using (StreamReader reader = new StreamReader(stream)) 
      { 
       serializedObject = reader.ReadToEnd(); 
      } 
     } 
     return serializedObject; 
    } 
} 
public partial class InheritedRequestA : BaseRequest 
{ 
} 

public partial class InheritedResponseA : BaseRequest 
{ 
} 
public partial class BaseRequest 
{ 
    //members here 
    public string Member; 
} 

[XmlInclude(typeof(VersionRetrieverWrapper))] 
public class Wrapper 
{ 
} 

public class VersionRetrieverWrapper : Wrapper 
{ 
    public InheritedRequestA Request { get; set; } 
    public InheritedResponseA Response { get; set; } 
}