Reusing the save event handler

Hi,

I have a few controls on a form to which I've set the same contextmenustrip.
On the 'Opening()' event for the context menu strip, I have a need to
occasionally hide menu items based on the control for which the
contextmenustrip has been 'opened'.  I looked at the 'sender' argument - it
didn't seem to help much.  HOw can I tell which control caused the
contextmenustrip to open, please?

Peter