value zero in form

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i new adobe acrobat pro , designing form. have fields calculated multiplying 2 fields. dont want display or print if valve zero. how go it?

please help

with form created in acrobat, can use custom validation script set field value null string when calculated value 0 or need write custom validation script.

 

// set value null if event value zero

if(event,value ==0) event.value = "";



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