How to remove all event handlers from an event

Question

To create a new event handler on a control you can do this

c.Click += new EventHandler(mainFormButton_Click);

or this

c.Cli         


        

Answer 1

If you reaallly have to do this... it'll take reflection and quite some time to do this. Event handlers are managed in an event-to-delegate-map inside a control. You would need to

• Reflect and obtain this map in the control instance.
• Iterate for each event, get the delegate
  • each delegate in turn could be a chained series of event handlers. So call obControl.RemoveHandler(event, handler)

In short, a lot of work. It is possible in theory... I never tried something like this.

See if you can have better control/discipline over the subscribe-unsubscribe phase for the control.