TYPO3.Fluid

I would like to have a sorting option for selectboxes.

sometihng like:

$this->registerArgument('sortByOptionLabel', 'boolean', 'If true, List will be sorted by label.');

and in getOptions

if ($this->arguments->hasArgument('sortByOptionLabel') && $this->arguments['sortByOptionLabel'] === true) {
asort($options);
}