c# - 使用事件序列化类

Question

我有这样一个类:

public delegate void ChangedEventHandler(object sender, EventArgs e);
[Serializable]
public class valueDouble
{
    public event ChangedEventHandler Changed;
    public double value
    {
        get { return _value; }
        set 
        {
            _value = value;
            if (Changed != null)
            {
                Changed(this, EventArgs.Empty);
            }
        }
    }
    private double _value = 0;
}

我还有另一个不可序列化的类 (StepPulseblaster)，它添加了一个事件处理程序

valDouble.Changed += new ChangedEventHandler(sc_PropertyChanged);

当我尝试序列化 valueDouble 类时，会出现错误:

The Type StepPulseblaster is not marked as serializable

当我评论这行的时候

valDouble.Changed += ...

不会再有错误了。

我如何序列化一个连接了一些事件的类？

Answer 1

你应该这样做:

[field: NonSerialized]
public event ChangedEventHandler Changed;

如 MSDN 中所述:

To apply the NonSerializedAttribute class to an event, set the attribute location to field.