need to activate line with of a textbox with a checkbox.

[-trick]

I'm trying to make a pdf that when you check certain boxes a section of the doc will highlight.

I thought the best way to go about it is to use the lineWidth of a text box.  Not sure if that IS the best way it was just a thought...

But I want to border to be hidden first then when a checkbox is checked it will be visible.  if the box is unchecked it goes back to hidden.

I've tried this in the checkbox action:

var checkBox1 = getField("CheckBox1").value;
var bord = getField("bordr1");
bord.lineWidth = 0;
if (checkBox1 = "Yes") {
    bord.lineWidth = 3;
}
else {
    bord.lineWidth = 0;
}

but it doesn't work.  couple questions

is there a way to just write code instead of putting it in actions?

if not how can I hide the text box by default?  and still be able to display it later?

[try67 · Accepted solution]

Remove line #3 from your code.

Also, you used the wrong operator in line #5. It should be:

if (checkBox1 == "Yes") {

Regarding the execution of the code: It can be done from several places. For testing purposes you can run it from the JS Console.

Press Ctrl+J to open it, then paste the code into it, select ​all of it using the mouse or keyboard and press Ctrl+Enter to run it.

[-trick]

Thank you!  That worked as I wanted it to. 

[-trick]

So.  now that is working I tried to translate to multiple checkboxes.

Basically I have three checkboxes and if any of them are checked then I want the box to show the border.  I'm still trying to type the code in the properties -> actions area since the "All javascript" part adds XML that I'm not exactly sure what its used for so I don't want to change it or create something without it...   Basically I'm typing the below code into the actions of each checkbox which seems redundant but I don't know any other way to do it.  The console is great when trying things out but what do I do when I want to send this PDF to someone?  other than actions where does the code go?

so, anyway, here is the code I'm trying.  ( I DID change the value in each check box from "Yes" to "3")

var cb1 = getField("CheckBox1").value;

var cb2 = getField("CheckBox2").value;

var cb3 = getField("CheckBox3").value;

var bord = getField("bordr1");

if (cb1 ^ cb2 ^ cb3 == "3") {

    bord.lineWidth = 3;

    bord.display = display.visible;

}

else {

    bord.display = display.hidden;

}

this works to a point.  I can check each box individually and get the border.  I can check the "first and third", and the "second and third" but when I check the "first and second" the border turns back off when the second box is checked.  I'm confused as to why this is happening,  Any thoughts? 

[try67]

What did you try to express with this symbol "^"?

[gkaiseril]

That is the Exclusive OR bitwise operator.

[-trick]

ok well...  A single pipe seems to work.  For some reason I was reading that the standard or operator was a double pipe.  this is all pretty new to me still.