# WordPress.org

## Jazzy Forms Simple calculation (7 posts)

1. Marja Beckers
Member
Posted 1 year ago #

I need a form with a few checkboxes. Each containing an option with the value 0 when unchecked and a price value when clicked.

Underneath that I need a field that adds the value of all these fields.
I have tried a few things but I can´t work it out.

any help?

2. dvdbacco
Member
Posted 1 year ago #

Hello,

well, if I've understood, I think there is no problem doing what you ask, simply:
Create a new form, call it as you want.

Add one CHECKBOX, selecting it and drag and drop on right menu, title it, ID it with A
"value for checked" = 10
"value for unchecked" = 0

Add another one CHECKBOX, title it, ID it with B
"value for checked" = 20
"value for unchecked" = 0

Add another one CHECKBOX, title it, ID it with C
"value for checked" = 30
"value for unchecked" = 0

Add a OUTPUT, title it, ID it with SUM
"formula" = A+B+C
"unit before number" = € or \$
"decimals" = 2

Go to Generals copy and paste on your article or page the Jazzy code.

Done?

Greetings
David

My Jazzy Form under the name of the fruits (in Italian sorry): http://www.condifesa.ra.it/calcola-il-preventivo/

3. Marja Beckers
Member
Posted 1 year ago #

I must be doing something wrong, cause all I get in the output field is "invalid formula".
I have checked "Update output elements instantly" under general.

The ID of my output field is SUM
and the formula is =A+B+C

The checkbox fields are also as you mentioned.

you can see it here:
http://www.marbiedesign.nl/dev/

4. Marja Beckers
Member
Posted 1 year ago #

This is how I configured it: my form

The fields B and C are configures as A part from the "value when checked".

5. dvdbacco
Member
Posted 1 year ago #

Hello!

Solution is simple!
Just remove the "=" on formula field... "A+B+C" is enough.

Try it and let me know...

Greatings
David

[sig moderated as per the Forum Rules]

6. Marja Beckers
Member
Posted 1 year ago #

Thanks!
It turned out to be something in the theme (headway) as well.
It works fine in twentytwelve.

7. dvdbacco
Member
Posted 1 year ago #

“ALL'S WELL THAT ENDS WELL”

You're welcome...

David
[sig moderated as per the Forum Rules]

This topic has been closed to new replies.