WordPress at a glance
filter is not described

woocommerce_admin_html_order_preview_item_class filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_admin_html_order_preview_item_class', 'filter_function_name_9392', 10, 3 );
function filter_function_name_9392( $string, $item, $order ){
	// filter...

	return $string;
}
$string
-
$item
-
$order
-

Where the hook is called

WC_Admin_List_Table_Orders::get_order_preview_item_html()
woocommerce_admin_html_order_preview_item_class
woocommerce/includes/admin/list-tables/class-wc-admin-list-table-orders.php 494
$row_class      = apply_filters( 'woocommerce_admin_html_order_preview_item_class', '', $item, $order );

Where in WP core the hook is used WooCommerce

Usage not found.