How to Make Parent Menu Clickable in Bootstrap Navwalker Menu

For me it worked this way: I assume you make usage of the wp-bootstrap-navwalker

Open up the wp-bootstrap-navwalker.php with your editor and look up for line approx. 83

// If item has_children add atts to a.
if ( $args->has_children && $depth === 0 ) {
   $atts['href']        = '#';
   $atts['data-toggle'] = 'dropdown';
   $atts['class']           = 'dropdown-toggle';
} else {
   $atts['href'] = ! empty( $item->url ) ? $item->url : '';
}

Change this piece of code to:

// If item has_children add atts to a.
if ( $args->has_children && $depth === 0 ) {
   $atts['href'] = ! empty( $item->url ) ? $item->url : '';
   //$atts['data-toggle']   = 'dropdown';
   $atts['class']           = 'dropdown-toggle';
} else {
   $atts['href'] = ! empty( $item->url ) ? $item->url : '';
}

Note: $att['href'] is enabled now, the the $atts['data-toggle'] is disabled which makes the parent link clickable.

Now open up your style.css and add this piece of code to activate the hover function for your WordPress menu with dropdown and clickable parent.

.dropdown:hover .dropdown-menu {
    display: block;
}

Note: The behaviour of the menu will change slightly on small devices with small screens. No additional jQuery required.

http://stackoverflow.com/questions/21748558/make-parent-menu-clickable