How do I do a simple calculation with the input from a form field?

[mitchellsimoens]

Please stop just blindly throwing code in. You have to define the form variable which equals btn.up('formpanel');

[marc.gayle]

For what it is worth, the for loop didn't work here.

i.e. all of this..did NOT work - for whatever reason... 'fields.length' kept returning '0':

var fields = form.query('numberfields'),
f = 0,
fNum = fields.length,
sum = 0;

for (; f < fNum; f++) {
sum += fields[f].getValue();
}

However, what DID work though was form.getValues();

i.e. this snippet:

handler: function(btn) {
   form = btn.up('formpanel');
   var values = form.getValues();
   sum = (values.Num1 + values.Num2 + values.Num3 + values.Num4);

So maybe you might want to update the 'accepted answer' for this question.

Thanks!

[mitchellsimoens]

There was a typo... instead of numberfields it should be numberfield.