Adaptive Form Table - How to get field(s) to recalculate after removing a Row Instance

All,

After working the problem through a little more - I solved it.  Here is how I did it.

1. Set up the rule in the rule editor.
   1. I wanted the code to fire regardless of how many rows there were – so instead of having code in the ‘row total’ of each instance
      of the row – I added it to the ‘total of sums’ field.
   2. Since I want this code to fire all the time – I set the condition to fire when empty and when not empty.
   3. Then, I set the function result (sum) to add each of the instances of ‘row total’.

DO NOT Click ‘Done’  !!  If you do – you will need to rewrite half of what AEM deletes when you go back to edit.

This is how AEM wrote the code.

WHEN
Total of Sums is changed
AND
(Total of Sums is empty)
OR
(Total of Sums is not empty)
THEN
(Output of Function Sum)

As written by AEM, this code will never fire
because ‘total of sums’ is readOnly AND is waiting for its value to change.

2.  So then, while we are still in the rule editor screen, we switch from ‘Visual Editor’, to ‘Code Editor’

(and)
change the Event from ‘Value Commit’ (or whatever it is) and select ‘Calculate’.

Further Development

If you work through this example – you’ll notice that the calculation field displays “$0.00” when empty or “0”.  To fix that – I added this code the Rule
Editor – following much of the same steps above.

Instead of 'calculate' - I switched it to 'validate'.

if ( ( this.value == 0 || (this.value === null || this.value === "" ) ) )

{  
     this.value = null;

}