Triggered in Backend\Widgets\Lists.

Provides opportunity to inject a custom CSS row class

If a value is returned from this event, it will be used as the value for the row class. $value is passed by reference so modifying the variable in place is also supported. Example usage:

Event::listen('backend.list.injectRowClass', function ($listWidget, $record, &$value) {
    $value .= '-modified';


$listWidget->bindEvent('list.injectRowClass', function ($record, $value) {
    return 'strike';