list_pages() for Admin Edit List

/**
 * A dashboard widget that lists out pages in a heirarchy
 * Add this to the end of your "Functions.php" file in your theme directory
 *
 * This function is hooked into the 'wp_dashboard_setup' action below.
 */
function site_map_edit() {

	wp_add_dashboard_widget(
                 'site_map_edit',         // Widget slug.
                 'List Pages by Site Map',         // Title.
                 'site_map_edit_function' // Display function.
        );	
}
add_action( 'wp_dashboard_setup', 'site_map_edit' );

/**
 * Create the function to output the contents of our Dashboard Widget.
 */
function site_map_edit_function() {

	// Code uses list_pages with $args 
	
	$args = array(
	'sort_order' => 'ASC',
	'sort_column' => 'post_title',
	'hierarchical' => 1,
	'child_of' => 0,
	'parent' => -1,
	'offset' => 0,
	'post_type' => 'page',
	'post_status' => 'publish'
	); 

	?>
	 <h2>Pages List</h2>
	 <ul>
	<?php
	$pages = get_pages(); 
	  foreach ( $pages as $page ) {
		$output = '<li><a href="/wp-admin/post.php?post=' . $page->ID . '&action=edit">';
		$output .= $page->post_title;
		$output .= '</li>';
		echo $output;
	  }
	?>
	</ul>
<?php
}