show/hide textbox on radio button

[gamzes93533812]

Cheers!

I know that it is an issue that is discussed and solved in various platforms, but i have a very (probably quite simple) issue that I can not solve.

I believe I am missing a small but some important parameter since I am new to js.

Basically, I am creating a pdf form in Acrobat.

I have 6 radio buttons in a group (group name: Group1) and each have different names.

Independent than that I have some text field (layer name: "DayMonth-1") that I would like to display (which is hidden in default) if the user selects for example first radio button (layer name: "un_jour_precis" under Group 1).

I used the following code as a MouseUp Event for my radio button:

var x = this.getField("un_jour_precis");
if (x.value = "Off") {
    this.getField("DayMonth-1").display = display.visible;
}
else {
    this.getField("DayMonth-1").display = display.hidden;
}

But, nothing happens

I would appreciate any corrections/suggestions!

[try67]

You've made a classic mistake of assigning a value instead of comparing it...

Change this line:

if (x.value = "Off")

To:

if (x.value == "Off")

[gamzes93533812]

Thank you for your answer.

I replaced my

"=" with "=="

but still not working.

[try67]

Check the JS Console (Ctrl+J) for error messages.

[gamzes93533812]

Thanks, I checked, and this is what is given as error:

TypeError: x is null

3:Field:Mouse Up

[Thom Parker]

X is null because the field name is incorrect.

Here is an article that discussed exactly the thing you want to do:

https://acrobatusers.com/tutorials/show_hide_fields

[gamzes93533812]

Thank you for commenting and the reference. I already checked that article before posting this question.

Nevertheless it's sample#2 for radio buttons is not corresponding exactly what I ask.

Plus, I did apply their advice such as:

this.getField("DayMonth-1").display = display.visible;  else.....

You wrote  "X is null because the field name is incorrect." but I double checked my field names and text in js. And they are the same. Did you mean something else?

[try67]

It means what Thom said. You keep referring to layers... Is this a layer or a field? The two are not the same, you know.

[gamzes93533812]

Sorry. I self-correct. I meant "fields" by writting layers.

[try67]

OK. Then the field-name you specified is incorrect. Keep in mind it's case-sensitive.

If you still can't get it to work you will need to share either a screenshot of the field and the code, or (better yet) the actual file.

[gamzes93533812]

Here comes my file:

https://we.tl/RjgfKKvF0H

The field of interest is group6>un_jour_precis (where I tried to assign a js comment)

[try67 · Accepted solution]

OK, I see the issue now. "un_jour_precis" is not a field name, it's the "radio button choice" value of a specific radio-button in the "Group6" field. What you tried to do is a bit tricky, so I wrote for you the code that does it:

if (event.target.value != "un_jour_precis") {
    this.getField("DayMonth-1").display = display.visible; 
} else {
    this.getField("DayMonth-1").display = display.hidden; 
}

You should apply it to ​all of the radio-buttons in the group for it to work correctly.

[gamzes93533812]

Thank you! I would proceed like this.