4
我正在构建一个通知框架，并且我正在序列化和反序列化一个基类，从中我要发送所有的类。C＃中的派生类的序列化
的问题是，代码编译，但是当我真正尝试序列化这个基本类我得到一个错误说
System.Runtime.Serialization.SerializationException: Type 'Xxx.DataContracts.WQAllocationUpdate' in Assembly 'Xxx.DataContract, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.
下面是代码：
public class WCallUpdate : NotificationData
{
private string m_from = "";
[DataMember]
public string From
{
get { return m_from; }
set { m_from = value; }
}
private WCall m_wCall = new WCall();
[DataMember]
public WCall Call
{
get { return m_wCall; }
set { m_wCall = value; }
}
}
的DataContract为通知是：
/// <summary>
/// Basic class used in the notification service
/// </summary>
[DataContract]
public class NotificationData
{
}
/// <summary>
/// Enum containing all the events used in the application
/// </summary>
[DataContract]
public enum NotificationTypeKey
{
[EnumMember]
Default = 0,
[EnumMember]
IWorkQueueServiceAttributionAddedEvent = 1,
[EnumMember]
IWorkQueueServiceAttributionUpdatedEvent = 2,
[EnumMember]
IWorkQueueServiceAttributionRemovedEvent = 3,
}
用于序列化数据的代码是：
#region Create Message
/// <summary>
/// Creates a memoryStream from a notificationData
/// note: we insert also the notificationTypeKey at the beginning of the
/// stream in order to treat the memoryStream correctly on the client side
/// </summary>
/// <param name="notificationTypeKey"></param>
/// <param name="notificationData"></param>
/// <returns></returns>
public MemoryStream CreateMessage(NotificationTypeKey notificationTypeKey, NotificationData notificationData)
{
MemoryStream stream = new MemoryStream();
BinaryFormatter formatter = new BinaryFormatter();
try
{
formatter.Serialize(stream, notificationTypeKey);
formatter.Serialize(stream, notificationData);
}
catch (Exception ex)
{
Logger.Exception(ex);
}
return stream;
}
#endregion
当我试图创建一个消息：
WCallUpdate m_wCallUpdate = new WCallUpdate();
NotificationTypeKey m_notificationTypeKey = new NotificationTypeKey.Default;
CreateMessage(notificationTypeKey , wCallUpdate);
我得到了以下错误：
System.Runtime.Serialization.SerializationException: Type 'Xxx.DataContracts.WCall' in Assembly 'Xxx.DataContract, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.
at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type)
at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)
at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)
at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)
at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo)
at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
at Xxx.Notification.NotificationMessageFactory.CreateMessage(NotificationTypeKey notificationTypeKey, NotificationData notificationData) in Xxx.Notification\NotificationCenter.cs:line 36
如果我把序列化的标志前DataContract一个没有解决的问题。
谢谢你的快速回答。 对不起，我忘了把NotificationData的代码（在主后编辑）
我试图把Serializable属性这两个类都没有成功:(
#region NotificationData
/// <summary>
/// Basic class used in the notification service
/// </summary>
[Serializable]
[DataContract]
public class NotificationData
{
}
#endregion
和
[Serializable]
public class WCallUpdate : NotificationData
{
private string m_from = "";
[DataMember]
public string From
{
get { return m_from; }
set { m_from = value; }
}
private WCall m_wCall = new WCall();
[DataMember]
public WCall Call
{
get { return m_wCall; }
set { m_wCall = value; }
}
}
**编辑：** Mea culpa afterall :)你们都是对的。 我忘了把[Serializable]属性传给所有的孩子。 更新和编译后，我不再有例外。 感谢你们为您的正确答案:)
@Marc碎石： 其实我想过，你的建议是什么，并创建了以下DataContractSerializer的，但我不知道这是否行得通呢？当我的课程使用其他课程？ DataContractSerializer的最大问题是您需要指定要序列化的对象的类型，并且由于我的类将其他类用作专用字段，这可能会导致问题。
#region DataContractSerializer
/// <summary>
/// Creates a Data Contract Serializer for the provided type. The type must be marked with
/// the data contract attribute to be serialized successfully.
/// </summary>
/// <typeparam name="T">The type to be serialized</typeparam>
/// <returns>A data contract serializer</returns>
public static DataContractSerializer CreateDataContractSerializer<T>() where T : class
{
DataContractSerializer serializer = new DataContractSerializer(typeof(T));
return serializer;
}
#endregion
我很困惑你为什么使用BinaryFormatter和数据契约（这个评论现在扩展到了答案中）。 – 2009-04-16 07:11:28