Parent/child taxonomy terms

You can refer to this thread.

Thanks I have tried to get it to work for a dropdown but with no luck. Here is what I have tried:

add_filter('uwpqsf_tax_field_dropdown','custom_select_output','',12);

function custom_select_output($html,$type,$exc,$hide,$taxname,$taxlabel,$taxall,$opt,$c,$defaultclass,$formid,$divclass){

$eid = explode(",", $exc);

$args = array('hide_empty'=>$hide,'exclude'=>$eid, 'hierarchical' => true, 'parent' => 0 );

$taxoargs = apply_filters('uwpqsf_taxonomy_arg',$args,$taxname,$formid);
$terms = get_terms($taxname,$taxoargs); $count = count($terms);

    if($type == 'select'){
                $html  = '<div class="jas '.$defaultclass.' '.$divclass.' tax-select-'.$c.'"><span class="taxolabel-'.$c.'">'.$taxlabel.'</span>';

                $html .= '<input type="hidden" name="taxo['.$c.'][name]" value="'.$taxname.'">';
                $html .= '<input type="hidden" name="taxo['.$c.'][opt]" value="'.$opt.'">';

                if(!empty($taxall)){
                    $html .= '<select id="tdp-'.$c.'" class="tdp-class-'.$c.'" name="taxo['.$c.'][term]">';
                    $html .= '<option selected value="uwpqsftaxoall">'.$taxall.'</option>';
                }

                if ( $count > 0 ){
                    foreach ( $terms as $term ) {
                        $selected = $terms[0]->term_id;
                        $html .= '<option value="'.$term->slug.'">'.$term->name.'</option>';

                        $args = array(
                            'hide_empty'    => false,
                            'hierarchical'  => true,
                            'parent'        => $term->term_id
                        );
                        $childterms = get_terms($taxname, $args);

                        foreach ( $childterms as $childterm ) {
                                $selected = $childterms[0]->term_id;

                            $html .= "<option value='".$childterm->slug."'".">-" . $childterm->name . '</option>';

                        }}
                     }

                     $html .= '</select>';
                     $html .= '</div>';
                     return  $html;
    }

}

Ignore me I fixed it! It had to be

if($type == 'dropdown'){

not

if($type == 'select'){