I'm not asking how to do it, I'm trying to make a point.
What I am trying to say is that as a matter of good practice you should declare and link the handlers for all grids on your screen even if there is only one. In that manner you explicitly state that there is this handler defined for this grid and not
'Well - there maybe a handler. I don't really know until I wade through a million pages of spaghetti"
So even if there is no need to link the handlers explicitly, you should to aid maintenance and understanding at a later date.
And you have not done so in your example above.
Rich