Thanks, I gave it a try but I’m still seeing the same column issue-

Typical field:
<div data-piklist-field-group="ccf4167" data-piklist-field-columns="6" class="piklist-field-column piklist-field-column-last" style="display: block; float: left; width: 49.25%; margin-right: 0px;">...</div>

versus a file field:
<div data-piklist-field-group="ccf4167">...</div>

I’m on 0.9.4.25.

piklist('field', array(
   'type' => 'group'
   ,'field' => 'slideshow'
   ,'add_more' => true
   ,'label' => ''
   ,'description' => ''
   ,'template' => 'field'
   ,'fields' => array(
     array(
       'type' => 'file'
        ,'field' => 'slideshow_image'
        ,'columns' => 4
        ,'scope' => 'post_meta'
        ,'label' => __('Add File(s)','piklist')
        ,'description' => __('This is the basic upload field.','piklist')
        ,'options' => array(
              'modal_title' => __('Add File(s)','piklist')
              ,'button' => __('Add','piklist')
            )
     )
    ,array(
        'type' => 'text'
        ,'field' => 'slideshow_link'
        ,'columns' => 3
        ,'attributes' => array(
          'class' => 'text'
          ,'placeholder' => 'http://'
        )
      )
     ,array(
       'type' => 'textarea'
       ,'field' => 'slideshow_caption'
       ,'description' => ''
       ,'value' => ''
       ,'columns' => 5
       ,'attributes' => array(
          'placeholder' => ''
        )
     )
   )

 ));

It’s created from a plugin, I’ve just pulled your widget examples directly from the demo (example-form.php, example.php). I’m on Linux (CENTOS 5.10).

To anyone doing the same thing, here’s some working code.

In my meta-box file:

piklist('field', array(
   'type' => 'file'
   ,'field' => 'hero'
   ,'scope' => 'post_meta'
   ,'label' => __('Add File(s)')
   ,'description' => __('')
   ,'options' => array(
     'modal_title' => __('Add File(s)','piklist')
     ,'button' => __('Add','piklist')
   )
 ));

In my theme file:

<?php
wp_reset_postdata();
$hero = get_post_meta($post->ID, 'hero');
if ($hero[0] != '') :?>
	<div id="hero">
		<?php
		$args = array(
		'post_type'      => 'attachment',
		'post_mime_type' => 'image',
		'numberposts'    => -1,
		'include'    => $hero
		);
		$attachments = get_posts($args); ?>

		<?php if ($attachments): ?>
		<?php foreach ($attachments as $attachment): ?>
			<?php
			$alt = get_post_meta($attachment->ID, '_wp_attachment_image_alt', true);
			$image_title = $attachment->post_title;
			$caption = $attachment->post_excerpt;
			$src = wp_get_attachment_url( $attachment->ID , false );
			?>
			<img src="<?php echo $src; ?>" alt="<?php echo $alt; ?>" />
		<?php endforeach; ?>
		<?php endif; ?>

	</div>
<?php endif; ?>

Hmm how can I use wp_get_attachment_metadata to get the file data from a specific file field?

$gallery = get_post_meta($post->ID, 'gallery', true);
var_dump( $gallery );

Maybe related, should that var_dump not at least display an array? I’m just getting a single number despite multiple files being uploaded.

Yup but I’m looking to test if a checkbox value has been checked off, not a radio, so the results will be in an array and I didn’t see an example that pulled values from an array (I could have just missed it, my apologies if so!)-

piklist('field', array(
  'type' => 'checkbox'
  ,'field' => 'theme_regions'
  ,'label' => __('Active Regions:')
  ,'description' => __('')
  ,'value' => ''
  ,'choices' => array(
    'hero' => 'Hero'
    ,'layout_above' => 'Above Layout'
    ,'content_above' => 'Above Content'
    ,'content_below' => 'Below Content'
    ,'layout_below' => 'Below Layout'
  )
));

This wordy thing is what I settled on but I figured there’s a better way…

if (($theme_options['theme_regions'] == 'hero') OR (is_array($theme_options['theme_regions']) && (in_array("hero", $theme_options['theme_regions'])))) {
...
}