.NET 4.5 中的序列化中断

我们遇到了一个仅在 .NET 4.5 中发生的序列化问题 - 相同的代码在 .NET 4 中工作正常。我们正在尝试使用一些字段序列化继承类型，基类和继承类都标记为可序列化属性。我们在 Web 服务的客户端收到一个异常，说有一个方法访问异常在服务器端，服务器本身并没有抛出任何异常，看来是客户端序列化过程中出现了问题。 需要注意的是，我们正在 .NET 4 中编译，而不是 .4.5

更新：实施后串行化并忽略“Value”属性，程序确实运行正确，但这意味着我们不得不放弃序列化该字段。

非常感激任何的帮助。谢谢， 奥马尔

异常详细信息：

System.Web.Services.Protocols.SoapException occurred
  HResult=-2146233087
  Message=System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.InvalidOperationException: There was an error generating the XML document. ---> System.MethodAccessException: Attempt by method 'Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriter1.Write88_DeviceSiteTypeInfo(System.String, System.String, IOSIGHT.Info.DeviceSiteTypeInfo, Boolean, Boolean)' to access method 'IOSIGHT.Info.DeviceSiteTypeInfo.get_Value()' failed.
   at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriter1.Write88_DeviceSiteTypeInfo(String n, String ns, DeviceSiteTypeInfo o, Boolean isNullable, Boolean needType)
   at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriter1.Write1310_GetSiteTypesResponse(Object[] p)
   at Microsoft.Xml.Serialization.GeneratedAssembly.ArrayOfObjectSerializer2089.Serialize(Object objectToSerialize, XmlSerializationWriter writer)
   at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, String encodingStyle, String id)
   --- End of inner exception stack trace ---
   at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, String encodingStyle, String id)
   at System.Web.Services.Protocols.SoapServerProtocol.WriteReturns(Object[] returnValues, Stream outputStream)
   at System.Web.Services.Protocols.WebServiceHandler.WriteReturns(Object[] returnValues)
   at System.Web.Services.Protocols.WebServiceHandler.Invoke()
   --- End of inner exception stack trace ---
  Source=System.Web.Services
  Actor=""
  Lang=""
  Node=""
  Role=""
  StackTrace:
       at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
       at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
       at IOSIGHT.BLL.localhost.IOSightWS.GetSiteTypes() in C:\IOSIGHT\Common\IOSight.BLL\Web References\localhost\Reference.cs:line 25019
       at IOSIGHT.BLL.TypeBankBLL.GetSiteTypes() in C:\IOSIGHT\Common\IOSight.BLL\Entities\TypeBanksBLL.cs:line 477
  InnerException: 

附上基类和继承类的代码：Base:

[Serializable()]
public class TypeBankInfo
{


    #region "Fields"
    private int _id = 0;
    private string _Name = string.Empty;
    private string _description = string.Empty;
    private object _value = null;

    #endregion

    #region "Constructors"
    public TypeBankInfo()
    {
    }

    public TypeBankInfo(int ID, string name)
        : this()
    {
        this._id = ID;
        this.Name = name;
    }

    public TypeBankInfo(int ID, string name, string description)
        : this(ID, name)
    {
        this._description = description;
        this._value = Value;
    }

    public TypeBankInfo(int ID, string name, string description, object value)
        : this(ID, name, description)
    {
        this._value = value;
    }

    #endregion

    #region "Properties"
    public virtual string Name
    {
        get
        {
            return this._Name;
        }
        set
        {
            this._Name = value;
        }
    }

    public virtual string Description
    {
        get
        {
            return _description;
        }
        set
        {
            _description = value;
        }
    }

    public virtual int ID
    {
        get
        {
            return _id;
        }
        set
        {
            _id = int.Parse(value.ToString());
        }
    }


    public virtual object @Value
    {
        get
        {
            return this._value;
        }
        set
        {
            this._value = value;
        }
    }

    #endregion

}

因特瑞德

在 4.5 中，XmlSerializer 的实现被替换为不依赖于 C# 编译器的实现。虽然它提供了更好的启动性能和稳定性，但您可能会遇到实现之间的兼容性问题。您可以尝试将以下内容添加到您的 app.config 文件中，看看是否可以解决问题？

<configuration>
  <system.xml.serialization>
    <xmlSerializer useLegacySerializerGeneration="true"/>
  </system.xml.serialization>
</configuration>

如果您担心在 4.0 上执行此操作，您可以尝试在运行时检测框架的版本，并在运行时为 4.5 或更高版本时动态更改配置。我不久前写了一篇博客文章解释了如何做到这一点：

http://blogs.msdn.com/b/youssefm/archive/2010/01/21/how-to-change-net-configuration-files-at-runtime-include-for-wcf.aspx http://blogs.msdn.com/b/youssefm/archive/2010/01/21/how-to-change-net-configuration-files-at-runtime-including-for-wcf.aspx