are these typical events that any grid would have - even the standard net
when the user goes into a cell and changes it...
a.) before that cell actually changes, is there a before_update event, that
can save the value of whatever was
there or do whatever else we may need.
b.) after that cell is updated to the new value, fire off another event that
goes and does something ...
in this case it would look for stuff in a database matching that value...