I know this might seem primitive, but I\'ve been trying to implement it for a whole day, maybe because I can\'t fully comprehend how to use the API, I\'m using DataTables 1.
It really isn't that hard, but without seeing your markup I can only provide a generic example -
$('input[value="Check All"]').click(function() { // a button with Check All as its value
$(':checkbox').prop('checked', true); // all checkboxes, you can narrow with a better selector
});