Removing event handlers

[archies_san]

Is there any way to remove all the event handlers associated with buttons click event without using -= operator

[Diana Fernandez]

With an event you can use only += or -= operator. Actually keyword "event" is modifying a delegate for this behaviour.

[Martin 0]

Hello, A suggestion I gave some time ago and got no feedback, and never tried it myselfe! But maybe it helps you. The control class has a member called Events, which is a list of EventHandler (System.ComponentModel.EventHandlerList). This class provides a method called "RemoveHandler". Please let me know if it works for you! All the best, Martin

[Bekjong]

No there isn't. You can't set an event to be null or something for example, which is strange because it is initialized to be null. Here's my way of going around it:

public event EventHandler ExampleEvent;

    public void UnHook()
    {
        Collection<EventHandler> ExampleHandlers = new Collection<EventHandler>();

        foreach (Delegate d in this.ExampleEvent.GetInvocationList())
            ExampleHandlers.Add(d as EventHandler);

        foreach (EventHandler e in ExampleHandlers)
            this.ExampleEvent-= e;
    }

I don't know if there's a better way for this, but this works for me...

Standards are great! Everybody should have one!

[archies_san]

Hi Martin, Thanks for the reply. Control class has a "protected" property called Events which I can't use in my code(which is a Outlook addin)becoz I am using CommandBarButton.

[Martin 0]

Hello, Don't care! I now tested it with an inherited Control, and found out, that it would not fit your needs. All the best, Martin