How to check if short code is present in template?

in that plugin i declared a short code but i want to enqueue the scripts only on those pages which have the short code. I tried This code =>

global $post;
if ( is_a( $post, 'WP_Post' ) && has_shortcode( $post->post_content, 'MyShortCode') ) {
    wp_enqueue_style('style_ui');
    wp_enqueue_script('script_ui');
}

it is working fine until i am adding the short code inside a template directly

echo do_shortcode( '[MyShortCode]' );

I also enqueued scripts inside short-code function

public function shortcodeui($atts) {
    wp_enqueue_style('style_ui');
    wp_enqueue_script('script_ui');
    require_once MYPL_PATH. 'templates/public/public.php';
}

but its not working for template please help