Can I stop other event handlers from receiving an event?

[Guest]

If i add an event handler to a particular event on a Control, can I consume
events that are triggered so any other handlers registered to the same event
do not process their code?

 

[Kumar Reddi]

Yeah, When you are attaching an event handler to an event, you use "+="
syntax, this adds to the list of handlers, if you simply use "=", that is
the only event handler that can recieve the event

 

[Stoitcho Goutsev \(100\) [C# MVP]]

Hi Kamur,

In the case of events += -= are translated by the compiler into calls to add
and remove event accessors. Using = with events on the other hand makes the
compiler t ogenerate an error message. Using = operator is possible when it
goes for variables of some delegate type, but not for events.

To answer to the original poster.... No, it is not possible. Even if it was
you cannot know how many handlers has been already registered, so to cancel
the handlers invokation won't lead to any good.

 

[Kumar Reddi]

Hi Goutsev,
You are right. My mistake. Was not thinking when I typed the response

Kumar

Hi Kamur,

In the case of events += -= are translated by the compiler into calls to add
and remove event accessors. Using = with events on the other hand makes the
compiler t ogenerate an error message. Using = operator is possible when it
goes for variables of some delegate type, but not for events.

To answer to the original poster.... No, it is not possible. Even if it was
you cannot know how many handlers has been already registered, so to cancel
the handlers invokation won't lead to any good.


--
Stoitcho Goutsev (100) [C# MVP]

Yeah, When you are attaching an event handler to an event, you use "+="
syntax, this adds to the list of handlers, if you simply use "=", that is
the only event handler that can recieve the event