词 - 反映事件

发布于 2024-10-09 13:58:52 字数 1270 浏览 4 评论 0原文

我正在尝试使用反射来获取单词中的所有事件，然后创建一个可以添加到这些事件之一的委托。到目前为止我的代码是：感谢您的回复。

想法是将 DocumentBeforeSave 等事件的名称传递给类似于以下的方法：

EventInfo p = getEvent(this.Application, "DocumentBeforeSave");

public EventInfo getEvent(Word.Application wordApp, string eventName)
    {
      Type wordType = wordApp.GetType();

      EventInfo[] f = wordApp.GetType().GetEvents();
      EventInfo result = (from o in f
                where o.Name == eventName
                select o).FirstOrDefault();
      return result;
    }

现在，这为我提供了 Microsoft.Office.Interop.Word.ApplicationEvents4_DocumentBeforeSaveEventHandler 的 EventInfo。对我来说，它看起来像 Word.ApplicationEvents4_DocumentBeforePrintEventHandler ，它可以使用 += 进行分配和事件处理程序；

我看到 EventInfo 有一个 AddEventHandler 方法。我希望我可以附加自己的委托来处理 DocumentBeforeSave 事件触发时的情况。

问题是，我似乎无法让代表正确。我一直在玩这个：

    MethodInfo[] myArrayMethodInfo = msw.GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
          MethodInfo r = (from o in myArrayMethodInfo
                  where o.Name == "add_" + p.Name
                  select o).FirstOrDefault();

Delegate del = Delegate.CreateDelegate(p.EventHandlerType,r, false);

但代表总是空的。这是不可能的还是我只是做错了。

谢谢

原文

I am trying to use reflection to get all the events in word and then create a delegate that I can add to one of these events. The code I have so far is:
Thanks for the response.

Well the idea is to pass the name of an event such as DocumentBeforeSave to a method a bit like:

EventInfo p = getEvent(this.Application, "DocumentBeforeSave");

public EventInfo getEvent(Word.Application wordApp, string eventName)
    {
      Type wordType = wordApp.GetType();

      EventInfo[] f = wordApp.GetType().GetEvents();
      EventInfo result = (from o in f
                where o.Name == eventName
                select o).FirstOrDefault();
      return result;
    }

Now this gives me an EventInfo of Microsoft.Office.Interop.Word.ApplicationEvents4_DocumentBeforeSaveEventHandler. Which to me looks like Word.ApplicationEvents4_DocumentBeforePrintEventHandler which can assign and eventhandler with +=;

I see that the EventInfo has an AddEventHandler method. I am hoping that I can attach my own delegate to handle when the DocumentBeforeSave event fires.

The problem is, I just don't seem to be able to get the delegate right. I have been playing around with this:

    MethodInfo[] myArrayMethodInfo = msw.GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
          MethodInfo r = (from o in myArrayMethodInfo
                  where o.Name == "add_" + p.Name
                  select o).FirstOrDefault();

Delegate del = Delegate.CreateDelegate(p.EventHandlerType,r, false);

But the Delegate is always null. Is this just not possible or am I just doing it wrong.

Thanks

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