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How to calculate the values of a multiple choice list

  • Eddy.vh
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Eddy.vh created the topic: How to calculate the values of a multiple choice list

Hello.

In a multiple choice list with the following values:
0;Bachata : Vendredi 24 avril à 40 € ;40
0;Kizomba/Urbankiz : Samedi 25 avril à 40 €;40
0;Salsa Cubaine : Dimanche 26 avril à 40 €;40

I would like to calculate the sum of the chosen options, 1 option = 40, 2 options = 80...

How can this result be achieved?

Regards,
Eddy
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  • mihaela
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mihaela replied the topic: How to calculate the values of a multiple choice list

Hello,

To add values of selected options in a multiple select list do as follows.

Go to the Advanced properties of the select list element, set Type to Custom and in the code area that appears add the following code:
function ff_selectlistname_action(element, action)
{
var sum = 0;
opts = ff_getElementByName("selectlistname");
for (var o = 0; o < opts.length; o++) {
   if( ff_getElementByName('selectlistname').options[o].selected == true) {
       sum = Number(sum) + Number(ff_getElementByName('selectlistname').options[o].value);
       }
    }

ff_getElementByName('total').value = sum;

} // ff_selectlistname_action
NOTE: In the code above replace every instance of "selectlistname" with the Name of the select list. Also, replace "total" with the Name of the field in which you wish to display the sum.

Let me know whether you have managed to set this for your form.

Regards,

Mihaela
#238449
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  • Eddy.vh
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Eddy.vh replied the topic: How to calculate the values of a multiple choice list

Hi Mihaela.

Excellent, this is exactly what I was looking for for Marc-André's 9-page form and it saves me other long modifications.

Thank you very much.

Regards,
Eddy
#238451
  • mihaela
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mihaela replied the topic: How to calculate the values of a multiple choice list

Hi again,

Great! I'm glad I've helped and that this is working as needed. :)

Regards,

Mihaela
#238459
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