BuddyPress.org

Not tested, but this would probably do it (put it in a plugin and activate it or add it to your theme’s functions.php file):

<?php

function disable_name_change( $data ) {

if ( 1 == $data->field_id )

$data->field_id = false;



return $data;

}

add_action( 'xprofile_data_before_save', 'disable_name_change' );

?>