I create a POS for Pizza and i have the follow problem to fix:

I create a form that include a subform to choose the product and a second subform with multiply checkboxes that you can choose the extras.

For example you can choose:

PIZZA MARGARITA and in Extras you can choose EXTRA HAM +0,20$, EXTRA CHEESE +0,40$ etc....

All records works well but my problem is how i can fetch the prices for calculate the total.

Right now i try to fetch by: row.TIMH_EXTRA_SUB = EXTRAS[ID == row.EXTRAS].MASTER_TIMH_EXTRA.toDecimal(); but just i take only the 1st price...

Can you help please?