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Asked: 2026-05-11T20:43:36+00:00

I have two objects – one that contains some code with will fire an

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I have two objects – one that contains some code with will fire an event, and one that contains the handler for that event. I can’t “AddHandler” in the Load of the first object, because an instance of the second object doesn’t exist yet. When I raise my event, I want to check to see if a copy of object2 has been instantiated (easy to do), and if a handler has been attached to the event yet (not sure how to do this).

I’m also open to another recommendation about how to do this instead. If I do my AddHandler in Object1.Load, and Object2 doesn’t exist yet, then it will never handle my event, even if I create it later. Right now, in the code that fires the event, I’ve just resorted to doing a RemoveHandler and then an AddHandler every single time the event is raised, and then I know I’ll attach when the object finally exists, but I know this is a crappy method.

I saw an article about something similar (Determine list of event handlers bound to event), and maybe I’m missing something in the translation, but I can’t get the code to work on my custom event in VB.NET.

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1 Answer

  1. Editorial Team

    You could also just have a bool field that you check before hooking the event.

    if not eventHooked then
 addhandler
 eventHooked = true
end if

    Also if you need a good c# to vb converter http://www.tangiblesoftwaresolutions.com/ has one that can translate a 100 lines on the fly or less for or translate a project of a 1000 lines for free. More than that you have to purchase it, but that usually those limits will work just fine. No I am not trying to advertise for them 🙂

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