Check and Uncheck a checkbox based on another checkbox status

Question

I have an Acrobat form with a checkbox that checks another checkbox. I have used the mouseUP action in the original checkbox to Run a Javascript to check the 2nd checkbox which works.

If I uncheck the original checkbox, the 2nd checkbox still has a checkmark. I have tried many solutions, but have not found success.

My mouseUP JS in the original checkbox is:

if(event.target.isBoxChecked(0))
this.getField("200Plus").checkThisBox(0,1);

Go easy on me, as I barely know how to spell Javascript.

Thank you.

ls_rbls · Accepted Answer

Close and restart Acrobat. Then test the form again.

I closed Acrobat and restarted it.

I don't see where this script doesn't work.

First slide, boxes are checked with the console opened:

Second slide, boxes are unchecked with the console opened:

Now I'm confused... should I be getting an undefined error?

In any case I would expect a syntax error which actually happens when I add ".value" to the variable as you suggest:

var f = this.getField("200Plus").value;

In fact, I get a "Type Error" with your suggestion:

Also note that this breaks the original intent of the script as requested by the OP since the primary checkbox looses the ability to check the secondary checkbox.

In the end, I am running the script like shown below (which is not throwing any errors and there's no need to define or even declare a variable using the guidance posted by George Kaiser in the link that I posted earlier):

if (event.target.value =="Yes") {

this.getField("200Plus").checkThisBox(0,true);

} else {

this.getField("200Plus").checkThisBox(0,false);

}

ls_rbls · Answer

This works for me:  if (event.target.value =="Yes") {var f = this.getField("200Plus");f.checkThisBox(0,true);} else {f.checkThisBox(0,false);}

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