I'm using wp_nav_menu() to display the main menu in my header section of the page.
But how can I display it's sub-menu items in my left section of the page?
I've googled, looked in this forum and on wordpress.org, but I can find no clear example of this. Just a lot of example using wp_list_pages and similar functions.
My menu is built up differently than my pages,so I can't use wp_list_pages.
I'm thinking that I ahve to use wp_get_nav_menu_items - but I dont know how to retrieve top parent menu item ID of the current page.
update
I finally found this link: Display a portion/ branch of the menu tree using wp_nav_menu()
Do I really have to use a walker to get sub-menu items?
