Often you want certain form fields appear or disappear based on value of other fields. While in some cases it requires field re-loading, most of the cases can be dealt with by simple conditional rule.
This example shows how you can use univ().setConditionalShow() on different elements.
This example shows how you can use univ().setConditionalShow() on different elements.
<?php
// You might need to use $p=$this; if you are inserting this code into page/*.php
$f=$p->add('Form');
$f->addField('line','address1','Address line 1')
->js(true)->univ()->bindConditionalShow(array(
''=>array(),
'*'=>array('address2')
),'dl')->autoChange(1);
$f->addField('line','address2','Address line 2');
$interests=array('S'=>'swimming','R'=>'running','W'=>'watching birds');
$f->addField('dropdown','interest','Your interests')
->setValueList($interests)
->js(true)->univ()->bindConditionalShow(array(
'S'=>array('swimming_info'),
'R'=>array('running_info'),
'W'=>array('birds_which','birds_where'),
),'dl');
$f->addField('line','swimming_info','How far can you swim?');
$f->addField('line','running_info','How far can you run?');
$f->addField('line','birds_which','What type of birds?');
$f->addField('line','birds_where','Where do you watch them?');
$f->addField('checkbox','has_photo','I would like to upload my photo')
->js(true)->univ()->bindConditionalShow(array(
''=>array(),
'Y'=>array('upload')
),'dl')->autoChange(1);
$f->addField('upload','upload','My Photo');
$f->addSeparator('Following fields are implemented in 3.9.2/trunk');
$docs=array('N'=>'NDA','C'=>'Contract');
$f->addField('checkboxlist','checkboxlist','Documents provided')
->setValueList($docs)
->js(true)->univ()->bindConditionalShow(array(
'N'=>array('upload_nda'),
'C'=>array('upload_contract'),
),'dl');
$f->addField('upload','upload_nda','Upload NDA');
$f->addField('upload','upload_contract','Upload Contract');
$docs=array('r'=>'red','b'=>'blue','o'=>'Other..');
$f->addField('radio','radio','Favorite Color')
->setValueList($docs)
->js(true)->univ()->bindConditionalShow(array(
'o'=>array('other_color'),
),'dl');
$f->addField('line','other_color','Specify Color');
if($f->isSubmitted()){
$f->js()->univ()->alert('very interesting')->execute();
}