如何从 VB.NET 中的事件中获取实际的 EventHandler 委托实例?

问题描述

在 C# 中，我可以这样做:

In C#, I could do something like this:

EventHandler handler = this.SomeEvent;

...例如，这将允许我做:

...which would allow me to, for example, do:

Delegate[] attachedHandlers = handler.GetInvocationList();

在 VB.NET 中，我似乎不知道如何做类似的事情.

In VB.NET, I can't seem to figure out how to do a similar thing.

这不起作用:

Dim handler As EventHandler = Me.SomeEvent

...由于以下错误:

公共事件 SomeEvent(sender AsObject, e As EventArgs)' 是一个事件，并且不能直接调用.用一个'RaiseEvent' 语句来引发事件.

Public Event SomeEvent(sender As Object, e As EventArgs)' is an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event.

但这也不起作用:

Dim handler As EventHandler = AddressOf Me.SomeEvent

...因为:

'AddressOf' 操作数必须是方法的名称(不带括号).

'AddressOf' operand must be the name of a method (without parentheses).

那么我怎样才能真正从 VB.NET 中的事件中获取 EventHandler 呢?立即想到的唯一想法是使用反射，但这似乎很荒谬.

So how can I actually get an EventHandler from an event in VB.NET? The only idea that's immediately coming to mind is to use reflection, but that seems pretty ridiculous.

推荐答案

   Private Event MyEvent()
   Private delegates() As System.Delegate = MyEventEvent.GetInvocationList()

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