This coding works fine as long as .columns is high enough. This form is based upon a sub-form with 10 columns with code in the dblClick() method. The form has a property named DesiredColumns (I forgot it was here) which I failed to change from 9 to 11. Initialization code "chops" off any unused columns.

I increased the grip.columncount in the sub-class to 15 for future needs.

As an aside, if the instance has a columncount other than the default, it is necessary to hack the .scx to either remove the declaration in the Property field or change it to the "correct" count that is in the sub-class. Otherwise, you get an "failure to load, etc." error when trying to modify the form.

Sorry, I had a "CRS" moment.