piklist(‘field’, array(
‘type’ => ‘select’
,’scope’ => ‘post_meta’ // Not used for settings sections
,’field’ => ‘box’
,’label’ => ‘Example Field’
,’description’ => ‘This is a description of the field.’
,’attributes’ => array(
‘class’ => ‘text’
)
,’choices’ => array(
‘box1’ => ‘1’
,’box2′ => ‘2’
)
));

piklist(‘field’, array(
‘type’ => ‘select’
,’scope’ => ‘post_meta’ // Not used for settings sections
,’field’ => ‘itens’
,’label’ => ‘Itens’
,’attributes’ => array(
‘class’ => ‘text’
)
,’choices’ => array(
‘item01’ => ‘Item 1′ ***(visible only is field box = 1)
,’item02’ => ‘Item 2′ ***(visible only is field box = 2)
,’item03’ => ‘Item 3′ ***(visible only is field box = 1)
,’item04’ => ‘Item 4’ ***(visible only is field box = 2)
)
));

In this case the condition does not apply to the field (hide / uhide), but the items in the select field.
Is there a way to do this?