diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index e1e1fc45228..b487d3f3043 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -6197,6 +6197,7 @@ class Form
 			$tmpfieldstoshow = '';
 			foreach ($objecttmp->fields as $key => $val)
 			{
+				if (!dol_eval($val['enabled'], 1, 1)) continue;
 				if ($val['showoncombobox']) $tmpfieldstoshow .= ($tmpfieldstoshow ? ',' : '').'t.'.$key;
 			}
 			if ($tmpfieldstoshow) $fieldstoshow = $tmpfieldstoshow;
@@ -6294,8 +6295,7 @@ class Form
 					}
 					if (empty($outputmode))
 					{
-						if ($preselectedvalue > 0 && $preselectedvalue == $obj->rowid)
-						{
+						if ($preselectedvalue > 0 && $preselectedvalue == $obj->rowid) {
 							$out .= '<option value="'.$obj->rowid.'" selected>'.$label.'</option>';
 						} else {
 							$out .= '<option value="'.$obj->rowid.'">'.$label.'</option>';
diff --git a/htdocs/core/lib/ajax.lib.php b/htdocs/core/lib/ajax.lib.php
index 5bcf73ca896..d1c1540cb8a 100644
--- a/htdocs/core/lib/ajax.lib.php
+++ b/htdocs/core/lib/ajax.lib.php
@@ -34,7 +34,7 @@
  * @param string	$url 				Ajax Url to call for request: /path/page.php. Must return a json array ('key'=>id, 'value'=>String shown into input field once selected, 'label'=>String shown into combo list)
  * @param string	$urloption			More parameters on URL request
  * @param int		$minLength			Minimum number of chars to trigger that Ajax search
- * @param int		$autoselect			Automatic selection if just one value
+ * @param int		$autoselect			Automatic selection if just one value (trigger("change") on field is done is search return only 1 result)
  * @param array		$ajaxoptions		Multiple options array
  *                                      - Ex: array('update'=>array('field1','field2'...)) will reset field1 and field2 once select done
  *                                      - Ex: array('disabled'=> )
diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index 6505741d5a2..bcf32cdce26 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -413,6 +413,7 @@ class Product extends CommonObject
 	public $fields = array(
 		'rowid' => array('type'=>'integer', 'label'=>'TechnicalID', 'enabled'=>1, 'visible'=>-2, 'notnull'=>1, 'index'=>1, 'position'=>1, 'comment'=>'Id'),
 		'ref'           =>array('type'=>'varchar(128)', 'label'=>'Ref', 'enabled'=>1, 'visible'=>1, 'notnull'=>1, 'showoncombobox'=>1, 'index'=>1, 'position'=>10, 'searchall'=>1, 'comment'=>'Reference of object'),
+		'barcode'       =>array('type'=>'varchar(255)', 'label'=>'Barcode', 'enabled'=>'!empty($conf->barcode->enabled)', 'visible'=>-1, 'showoncombobox'=>1),
 		'entity'        =>array('type'=>'integer', 'label'=>'Entity', 'enabled'=>1, 'visible'=>0, 'default'=>1, 'notnull'=>1, 'index'=>1, 'position'=>20),
 		'label'         =>array('type'=>'varchar(255)', 'label'=>'Label', 'enabled'=>1, 'visible'=>1, 'notnull'=>1, 'showoncombobox'=>1),
 		'note_public'   =>array('type'=>'html', 'label'=>'NotePublic', 'enabled'=>1, 'visible'=>0, 'position'=>61),