CancelEventArgs is not marked Serializable

The System.ComponentModel.CancelEventArgs class in the .Net Framework 2.0 is not marked with the Serializable attribute. I discovered this in a remoting application that I am working on when the app through a SerializationException.

Why is the System.ComponentModel.CancelEventArgs class not marked as Serializable

Is this a bug or oversight in the .Net Framework 2.0

.NET Development1

I don't think so. CancelEventArgs (and HandledEventArgs) are both modifiable, unlike most EventArgs, and neither are Serializable. This commonality is a hint, so I think that they are worried about people using modifiable event arguments across Remoting. I can see why, as it could get pretty difficult deciding what happens when sending such an event across the network whilst at the same time also having it going to local event handlers.

Thanks for your reply. Yours is a good point. Let's see what others have to say.

It's simple enough to recreate the class but I am wondering if that would be a mistake.