<img width="459" alt="schermafbeelding 2018-08-01 om 17 02 24" src="https://user-images.githubusercontent.com/10217/43529950-b2b21a90-95ac-11e8-877f-6d6dd5e2f857.png">
When I press the "(un)select all" button the totals change, but the check box isn't enabled. <img width="456" alt="schermafbeelding 2018-08-01 om 17 02 32" src="https://user-images.githubusercontent.com/10217/43529959-b6cbcc84-95ac-11e8-92ff-e20d9cff566f.png">