A: 

Well it looks like your handlerDelegate is null when you are calling the RemoveHandler. I am not sure why this would happen, but have you tried instantiating the handlerDelegate right before calling RemoveEventHandler?

Victor  2008-12-16 16:57:33
I've stepped through the code in the debugger, and handlerDelegate is not null when I call RemoveEventHandler. I've updated the question to reflect this.
Greg  2008-12-17 15:06:56
A: 

Can you do:

eInfo.AddEventHandler(target, handlerDelegate);
eInfo.RemoveEventHandler(target, handlerDelegate);

in the InstallHandler method?

And check if that works?

Igal Serban  2008-12-18 17:38:50
I have checked that, and it does work. Question edited to reflect this.
Greg  2008-12-19 15:36:33

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