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Hello. I made a field with radio buttons ({sums}), when you click on one of which, a numeric field appears ({sumnum}). I use the formula {product_price} + {des} + {scr} + {sums} + {sumnum}. The problem is that when the field {sumnum} is hidden, the amount on the page is shown as “-“, only when the hidden field is opened will the price appear.
In the {sums} field, I have an option with value = 0. For the {sumnum} field, I have the expression specified ( {sums} == 0 ). If option with value = 0 is selected, the field {sumnum} becomes visible.
Do I have a problem with the formula? Can you tell me?
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