Hey, I'm using Twenty Ten as a theme base. I created a custom template file for a certain part of the site I needed to look differently.
template file name: portfolio-template.php
get_template_part file name: loop-portfolio.php
code used in portfolio-template.php:
<?php get_template_part( 'loop', 'portfolio' ); ?>
This follows the same pattern as the existing loop-page.php, loop-single.php, etc. but nothing inside loop-portfolio.php is printed to the screen. I edited portfolio-template.php to use
<?php get_template_part( 'loop', 'page' ); ?>
and that works. I'm not sure where my roadblock is - the syntax of get_template_part, or loop-portfolio.php itself.