script help - setting initial values

[#1]

The first line doesn't seem to work to create a "null" value for the "event.value".

Right now the form's initial value is "negative" and I really need it to neither positive or negative. Preferably blank.

All three radio buttons are set to start as blank. Neither yes or no (1 or 0) is checked as a default value. The Pdf form must be considering that as a 0 anyway as the form displays a "Negative" as an initial result on the form.

thanks for your help.

Bob

event.value = "null";

var v1 = Number(this.getField("Radio Button 1").value);

var v2 = Number(this.getField("Radio Button 2").value);

var v3 = Number(this.getField("Radio Button 3").value);

if (v1+v2+v3>0) {

event.value = "Positive";

}

else event.value = "Negative";

[#2]

The first line doesn't seem to work to create a "null" value for the "event.value".

Right now the form's initial value is "negative" and I really need it to neither positive or negative. Preferably blank.

All three radio buttons are set to start as blank. Neither yes or no (1 or 0) is checked as a default value. The Pdf form must be considering that as a 0 anyway as the form displays a "Negative" as an initial result on the form.

thanks for your help.

Bob

event.value = "null";

var v1 = Number(this.getField("Radio Button 1").value);

var v2 = Number(this.getField("Radio Button 2").value);

var v3 = Number(this.getField("Radio Button 3").value);

if (v1+v2+v3>0) {

event.value = "Positive";

}

else event.value = "Negative";

[#3]

The value of an unchecked set of radiobuttons is "Off".

So, you would have to treat that condition first; either by suppressing the calculation and maybe give an alert about unsufficient data, or by replacing it with another value.

Number("Off") results to NaN (Not a Number), if I remember correctly. So, the sum of NaN plus other numbers is never > 0, and therefore, your result is always "Negative".

[#4]

I should have said the script works in that at any point someone chooses a "Yes", the result flips to Positive and selecting all "No" values results in Negative.

So, are you saying if I create an if/else that says if v1 or v2 or v3 = "off" ( should I then change my button values to yes and no but then you can't add strings...)

event.value = ""

else

run the rest of the script

Am I in the ballpark?

[#5 · Accepted solution]

Yes, only it's "Off", not "off". Try this:

var v1 = this.getField("Radio Button 1").valueAsString;
var v2 = this.getField("Radio Button 2").valueAsString;
var v3 = this.getField("Radio Button 3").valueAsString;
if (v1=="Off" || v2=="Off" || v3=="Off") event.value = "";
else {
    var total = Number(v1) + Number(v2) + Number(v3);
    if (total>0) {
        event.value = "Positive";
    } else event.value = "Negative";
}

[#6]

Thanks MVP,

That works perfectly! Thanks to Maxwyss too, I don't know where I would have found that a default radio button is "Off".

Cheers!,

Bob