Events convention

Question

I'm making an XNA game and I have a question about the convention for events. I made a menu which has buttons, those buttons have 3 events naimly: onClick, onMouseEnter and onMouseLeave.

Atm my code looks like this :

    public static void PlayonClick(Button sender, EventArgs args)
    {

    }
    public static void PlayonMouseEnter(Button sender, EventArgs args)
    {

    }
    public static void PlayonMouseLeave(Button sender, EventArgs args)
    {

    }

This code will repeat for every button in the menu. Now I think it would be better if had 1 event and eventargs will contain what happend (onClick,onMouseLeave,onMouseEnter)

Note: onMouseEnter and onMouseLeave are acttualy the same for every button. So I'm thinking to subscribe all events to 1 method

So, What is they best way to implement this ?

Answer 1

Assuming you're attaching your handlers in code:

button.onClick += PlayonEvent;
button.onMouseEnter += PlayonEvent;
button.onMouseLeave += PlayonEvent;

If attaching in XAML, do the same sort of thing, which is simply to say that all of the events are handled by the same handler. Either way, define such a handler like:

public static void PlayonEvent(Button sender, EventArgs args)
{
    // do something based on EventArgs, which can give you an idea of what's going on
}