Why should events in C# take (sender, EventArgs)?

Question

It\'s known that you should declare events that take as parameters (object sender, EventArgs args). Why?

Answer 1

"Object sender" allows to reuse one method for multiple objects when the handler method is supposed to do something with the object that raised the event, for example 3 textbox can have one single handler that will reset the text of the firing textbox.

EventArgs's main advantage is that it allows to refactor event information without the need to change signatures of all handlers in all projects that are subscribed to this kind of event.

I can't think of a smarter way to deal with events.