Document how to do table sorting

Ok, I try to make the issue more clear....

I want to set up a tableselect table via elements module.

The working code looks like this:

function mymodule_form(){

    $options = some_custom_code();    
    $header = array(
        'cabin' => t('Cabin'),
        'price' => t('Price'),
        );
    if (!empty($options)) {
        $form['attr']['attributes'] = array(
        '#type' => 'tableselect',
        '#header' => $header,
        '#options' => $options, 
        '#advanced_select' => FALSE,
        '#multiple' => FALSE,
      );

}

The output is a it is supposed to be...S. screenshot I

Now I want to make the price sortable. Using common practice, it schould look like this:

function mymodule_form(){

     $options = some_custom_code();    
     $header = array(
        //EDIT
        array('data' => t('Kabine')),
        array('data' => t('Preis'), 'field' => 'price', 'sort' => 'desc'),
        //END EDIT
        );
    if (!empty($options)) {
        $form['attr']['attributes'] = array(
        '#type' => 'tableselect',
        '#header' => $header,
        '#options' => $options, 
        '#advanced_select' => FALSE,
        '#multiple' => FALSE,
      );

}

In the second case the table itself is shown, but without the options. S. screenshot II

Needs still more info?
greetz
Alex

No idea?

Hey, thx for reply. I think we can close this one.
Using uasort() did it.