How to call limit post of author on author page (wordpress)

Question

I want to show author's limited post titles on the author page. I'm using the code outside the wordpress loop to show limited post of author and the code is <?php query_posts('posts_per_page=20'); ?> <?php query_posts('posts_per_page=20'); ?> . but its showing recent post and i want only posts from author.

How to do this, anybody have idea?

Answer 1

use

query_posts('posts_per_page=20&author=$ID'); 

or use

query_posts('posts_per_page=20&author_name="admin"');  

Answer 2

Sample Code

<?php   

$the_query = new WP_Query(array('posts_per_page'=>20,'author'=>$put_author_id_here) );

while ( $the_query->have_posts() ) : the_post();

/* display the post as you do in loop*/

endwhile;

wp_reset_postdata();

?>