Retrieving value from a radiogroup

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TOPIC: Retrieving value from a radiogroup

Retrieving value from a radiogroup 1 year, 11 months ago #10041

marioliveira
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Fresh Boarder
Posts: 6

I have a form with a radiogroup called 'Opcoes' with item such as, for example:

22|Option 1
40|Option 2
350|Option 3

the values before options representing prices

I have a hidden field called 'Total' and a text box called 'Pax' which reflects the number of people to participate in activities defined by the radiogroup options.

What I want is to multiply the 'Pax' field by the value chosen by who is submitting the form, so 22, 40 or 350.

I tried this:

document.getElementById('Total').value = parseFloat((document.getElementById('Pax').value) * (document.getElementById('Opcoes').value))

but it doesn't work. Then I saw a thread derived from the script example named something like 'performing calculations with radio groups' but I can't adpat it to my case, or at least I'm too much a beginner to be able to do it. Can anybody help me, or put me into the right track, please?

May I add that in the submissions the values for the radiogroup and the pax fields are shown:(

Thanks

Last Edit: 1 year, 11 months ago by marioliveira. Reason: adding information

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Re:Retrieving value from a radiogroup 1 year, 11 months ago #10068

andreic
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Moderator
Posts: 494

You can try using a script similar to this one in the Form Layout tab in order to calculate the Total value of the fields you are trying to multiply:

<script type="text/javascript">
function calculateField()
{
if(document.getElementsByName('form[Opcoes]')[0].checked)
document.getElementById('Total').value=parseFloat(document.getElementById('Pax').value) * parseFloat(document.getElementsByName('form[Opcoes]')[0].value);
 
if(document.getElementsByName('form[Opcoes]')[1].checked)
document.getElementById('Total').value=parseFloat(document.getElementById('Pax').value) * parseFloat(document.getElementsByName('form[Opcoes]')[1].value);
 
if(document.getElementsByName('form[Opcoes]')[2].checked)
document.getElementById('Total').value=parseFloat(document.getElementById('Pax').value) * parseFloat(document.getElementsByName('form[Opcoes]')[2].value);
 
}
</script>

The script verifies which radio button is selected from the field "Opcoes" and multiplies with the value set in the field "Pax" and sets it in the field "Total". Also you will have to add the following code line in the Additional Attributes box of the radio group field:

onclick="calculateField();"

Please note: my help is not official customer support. To receive your support, submit a ticket by clicking here
Regards,
RSJoomla! Development Team

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Re:Retrieving value from a radiogroup 6 hours, 1 minute ago #0

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