序列化对象时如何忽略事件订阅者？ [英] How do I ignore event subscribers when serializing an object?

问题描述

当使用 BinaryFormatter 序列化以下类时，任何订阅 Roar 事件的对象也将被序列化因为对这些对象的引用由EventHandler代理持有。

  [Serializable] 
 public class Lion 
 {
公共事件EventHandler咆哮; 
 
 public string Name {get;组; } 
 public float Fluffiness {get;组; 
 
 public Lion（string name，float fluffiness）
 {
 Name = name; 
蓬松度=蓬松; 
} 
 
 public void Poke（）
 {
 Roar（）; //可以是null等等。
} 
} 
  

如何将活动订阅者作为对象图的一部分从Lion开始停止？

将 [NonSerializable] 属性事件将无法编译。

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$ b $注意：我正在回答自己的问题，因为我认为在网站上获取信息可能是有用的！

常见问题：请问和回答自己的问题也是完全正确的，但是假装你使用Jeopardy：以问题的形式进行短语。

解决方案

您必须在 [NonSerialized]

中包含字段： code>事件的code>属性。

ie：

  [field：NonSerialized] 
 public event EventHandler Roar; 
  

When the following class is serialized with a BinaryFormatter, any objects subscribing to the Roar event will also be serialized, since references to those objects are held by the EventHandler delegate.

[Serializable]
public class Lion
{
    public event EventHandler Roar;

    public string Name { get; set; }
    public float Fluffiness { get; set; }

    public Lion(string name, float fluffiness)
    {
        Name = name;
        Fluffiness = fluffiness;
    }

    public void Poke()
    {
        Roar(); // Could be null, etc..
    }
}

How would you stop event subscribers being serialized as part of the object graph starting with a Lion?

Putting the [NonSerializable] attribute on the event will not compile.

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Note: I'm answering my own question since I think it might be useful to have the information on the site!

FAQ: It's also perfectly fine to ask and answer your own question, but pretend you're on Jeopardy: phrase it in the form of a question.

解决方案

You have to include "field:" as part of the [NonSerialized] attribute on the event.

i.e.:

[field: NonSerialized]
public event EventHandler Roar;

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