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Plus and Minus buttins showing and hiding images and spawing pages but not deleting the pages

Steve25219687xhr4
Participant ,
Feb 24, 2025 Feb 24, 2025

Hi there,

 

I have attached a pdf I am working on that if you click the plus button a new image appears and then a new page is spawned up until 12 images. However the spawned pages aren't deleting when I click the minus button. Does anyone know where the problem is. 

For the spawned page deletion I am using the code in the var a1 = this.getField("Page 2.1").page; this.deletePages(a1); which picks up the text field on the spawned page "Page 2". 

 

The code in the custom calculation script of the "Counter" Text field is below:

if (event.target.display = (+event.value === 1)) {
this.getField("Button 2").display = display.hidden;
this.getField("Button 3").display = display.hidden;
this.getField("Button 4").display = display.hidden;
this.getField("Button 5").display = display.hidden;
this.getField("Button 6").display = display.hidden;
this.getField("Button 7").display = display.hidden;
this.getField("Button 8").display = display.hidden;
this.getField("Button 9").display = display.hidden;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
};

if (event.target.display = (+event.value === 2)) {
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.hidden;
this.getField("Button 4").display = display.hidden;
this.getField("Button 5").display = display.hidden;
this.getField("Button 6").display = display.hidden;
this.getField("Button 7").display = display.hidden;
this.getField("Button 8").display = display.hidden;
this.getField("Button 9").display = display.hidden;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
};

if (event.target.display = (+event.value === 3)) {
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.hidden;
this.getField("Button 5").display = display.hidden;
this.getField("Button 6").display = display.hidden;
this.getField("Button 7").display = display.hidden;
this.getField("Button 8").display = display.hidden;
this.getField("Button 9").display = display.hidden;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
var a1 = this.getField("Page 2.1").page; this.deletePages(a1);
};

if (event.target.display = (+event.value === 4)) {{
var y = this.getField("Page 1").page;
this.getTemplate("Page 2").spawn(y+1, false, false);};
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.hidden;
this.getField("Button 6").display = display.hidden;
this.getField("Button 7").display = display.hidden;
this.getField("Button 8").display = display.hidden;
this.getField("Button 9").display = display.hidden;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
};

if (event.target.display = (+event.value === 5)) {
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.visible;
this.getField("Button 6").display = display.hidden;
this.getField("Button 7").display = display.hidden;
this.getField("Button 8").display = display.hidden;
this.getField("Button 9").display = display.hidden;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
};

if (event.target.display = (+event.value === 6)) {
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.visible;
this.getField("Button 6").display = display.visible;
this.getField("Button 7").display = display.hidden;
this.getField("Button 8").display = display.hidden;
this.getField("Button 9").display = display.hidden;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
var a2 = this.getField("Page 3.1").page; this.deletePages(a2);
};

if (event.target.display = (+event.value === 7)) {{
var y = this.getField("Page 1").page;
this.getTemplate("Page 3").spawn(y+2, false, false);};
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.visible;
this.getField("Button 6").display = display.visible;
this.getField("Button 7").display = display.visible;
this.getField("Button 8").display = display.hidden;
this.getField("Button 9").display = display.hidden;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
};

if (event.target.display = (+event.value === 8)) {
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.visible;
this.getField("Button 6").display = display.visible;
this.getField("Button 7").display = display.visible;
this.getField("Button 8").display = display.visible;
this.getField("Button 9").display = display.hidden;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
};

if (event.target.display = (+event.value === 9)) {
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.visible;
this.getField("Button 6").display = display.visible;
this.getField("Button 7").display = display.visible;
this.getField("Button 8").display = display.visible;
this.getField("Button 9").display = display.visible;
this.getField("Button 10").display = display.hidden;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
var a3 = this.getField("Page 4.1").page; this.deletePages(a3);
};

if (event.target.display = (+event.value === 10)) {{
var y = this.getField("Page 1").page;
this.getTemplate("Page 4").spawn(y+3, false, false);};
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.visible;
this.getField("Button 6").display = display.visible;
this.getField("Button 7").display = display.visible;
this.getField("Button 8").display = display.visible;
this.getField("Button 9").display = display.visible;
this.getField("Button 10").display = display.visible;
this.getField("Button 11").display = display.hidden;
this.getField("Button 12").display = display.hidden;
};

if (event.target.display = (+event.value === 11)) {
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.visible;
this.getField("Button 6").display = display.visible;
this.getField("Button 7").display = display.visible;
this.getField("Button 8").display = display.visible;
this.getField("Button 9").display = display.visible;
this.getField("Button 10").display = display.visible;
this.getField("Button 11").display = display.visible;
this.getField("Button 12").display = display.hidden;
};

if (event.target.display = (+event.value === 12)) {
this.getField("Button 2").display = display.visible;
this.getField("Button 3").display = display.visible;
this.getField("Button 4").display = display.visible;
this.getField("Button 5").display = display.visible;
this.getField("Button 6").display = display.visible;
this.getField("Button 7").display = display.visible;
this.getField("Button 8").display = display.visible;
this.getField("Button 9").display = display.visible;
this.getField("Button 10").display = display.visible;
this.getField("Button 11").display = display.visible;
this.getField("Button 12").display = display.visible;
};

 

Any help, as always, will be greatly appreciated. 

 

Steve

 

TOPICS
JavaScript , Modern Acrobat , PDF forms
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Nesa Nurani Community Expert
Community Expert ,
Feb 24, 2025 Feb 24, 2025

Are you using reader or pro?
You should change all instances of:

if (event.target.display = (+event.value === X)) {
to
if (+event.value === X) {

 
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Steve25219687xhr4
Participant ,
Feb 24, 2025 Feb 24, 2025
In Response To Nesa Nurani

Pro but the end user will be using reader

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Nesa Nurani Community Expert
Community Expert ,
Feb 24, 2025 Feb 24, 2025
LATEST
In Response To Steve25219687xhr4

See if this works for you:

var n = Number(event.value);
var totalPages = this.numPages;

if (totalPages == 3 && n === 10) {
 this.getTemplate("Page 4").spawn(4, false, false);} 
else if (totalPages == 4 && n === 9) {
 this.deletePages(3);} 
else if (totalPages == 2 && n === 7) {
 this.getTemplate("Page 3").spawn(3, false, false);} 
else if (totalPages == 3 && n === 6) {
 this.deletePages(2);} 
else if (totalPages == 1 && n === 4) {
 this.getTemplate("Page 2").spawn(2, false, false);} 
else if (totalPages == 2 && n === 3) {
 this.deletePages(1);}


for (var i = 2; i <= 12; i++) {
 var f = this.getField("Button " + i);
  if (f) {
   if (i <= n) {
    f.display = display.visible;} 
   else {
    f.display = display.hidden;}}}

Also use this in Plus button:

var f = this.getField("Counter"); 
f.value += 1;

and this in 'Minus' button:

var f = this.getField("Counter"); 
f.value -= 1;

 

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Steve25219687xhr4
Participant ,
Feb 24, 2025 Feb 24, 2025
In Response To Nesa Nurani

Hi Nesa,

 

Many thanks for this. The pages are deleting now but the spawn page is spawing twice?

Any ideas?

Steve

 

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PDF Automation Station Community Expert
Community Expert ,
Feb 24, 2025 Feb 24, 2025

Removed by author

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