JS error for hiding/showing field (if/else) on model-driven app

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Posted on by brushb

Trying to add a JS for hiding/showing fields based on condition. I'm getting an error message, even though i have the 'pass execution as first context checked and the web resource is on the 'OnLoad' of the form. Any ideas on what could be the issue?

If fieldNumber is null = show field 2

if fieldnumber not null, show field 1

 function hideshowSerialNumberFields(executionContext) {
 var formContext = executionContext.getFormContext();
 //Getting value from Number 
 var fieldNumber= formContext.getAttribute("field_number").getValue();
 //If Number = Blank, Show Serial Numbers and hide Serial Number
 if (fieldNumber === null) {
 formContext.getControl("field_1").setVisible(false);
 formContext.getControl("field_2").setVisible(true);
 }
 else {
 formContext.getControl("field_1").setVisible(true);
 formContext.getControl("field_2").setVisible(false);
 }
 }

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Building Power Apps

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Ami K 15,689 Super User 2024 Season 1 on at

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@brushb - the code looks fine to me.

1. Are you sure you're using the correct Logical Names for field 1 and field 2?

2. Are you sure you have entered "hideshowSerialNumberFields" into the Function text box?