如何动态地使用反射设置事件处理程序 [英] How to set an event handler dynamically using Reflection

问题描述

我想动态设置的自定义事件处理程序是这样的伪code列表：

I'd like to dynamically set a list of custom event handlers something like this in pseudo-code:

FieldInfo[] fieldInfos = this.GetType().GetFields(
     BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly);

foreach (FieldInfo fieldInfo in fieldInfos)
{
    if this.fieldInfo.GetType() = TypeOf(CustomEventHandler<this.fieldInfo.Name>) {
        this.fieldInfo.Name += new CustomEventHandler<this.fieldInfo.Name>(OnChange<this.fieldInfo.Name>);
    }
}

我找不到正确的语法可以吗？

I can't find the right syntax can you ?

推荐答案

如何GetEvents而不是GetFields？

How about GetEvents instead of GetFields?

    var t = something.GetType();

    var eventInfos = t.GetEvents();

    foreach (var info in eventInfos)
    {
        if (info.EventHandlerType == TypeOf(CustomEventHandler<this.fieldInfo.Name>)
                info.AddEventHandler(...);                
    }

我不完全肯定了类型比较，但话又说回来， fieldInfo.Name 不能在一个通用的那样使用。

I'm not totally sure about the type-comparison, but then again, fieldInfo.Name can't be used in a generic like that.

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