How can I have 7 txt calculate and/or show/hide fields?

I have 7 fields txt. As follows, ST1, ST2, ST3... ST7. With 1 TotalST field for all areas 'ST' (that calculates totals fields). Is what I want to do, when the ST fields are not met, then the TotalST field would be hidden. When one or all the fields St are filled the TotalST field would be visible, but also calculates the fields of ST. Then the TotalSt would hide if I delete the entry of all fields of ST.

At the moment, I have the calculation works fine (fairly simple) by using the simplified window. But, in my opinion, it takes a javascript that will have to be placed in the window of custom calculation. So, can someone provide a script that would do what I hope to do? Thank you.

Sure. Use this code instead of the one above:

Event.Target.Display = (event.value == 0)? Display.Hidden: display.visible;

Tags: Acrobat

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