/** @return DataGrid */
protected function initPagination()
{
if ($this->itemCount === NULL) {
$this->itemCount = max(0, (int) NCallback::invoke($this->itemCounter, $this->filters));
$this->pageCount = (int) ceil($this->itemCount / $this->itemsPerPage);
$this->page = Helpers::fixPage($this->page, $this->pageCount);
}
return $this;
}
