Hi

I'm trying to create a calendar control with the date picker control.

   
public function parameterFields() {

        $tree = new TreeDropdownField('Expertise', 'Select Expertise', 'SiteTree');
        $tree->setTreeBaseID(3);
        $calendar = new DateField('ArticleDate', 'Article Date');

        $fields = new FieldList(array($tree,$calendar));
        return $fields;
    }

I have added the field but the calendar date picker does not display when you click on the field.

thanks