Prado\Web\UI\WebControls\TDataGrid::setSelectedItemIndex PHP Метод

    public function setSelectedItemIndex($value)
    {
        if (($value = TPropertyValue::ensureInteger($value)) < 0) {
            $value = -1;
        }
        if (($current = $this->getSelectedItemIndex()) !== $value) {
            $this->setViewState('SelectedItemIndex', $value, -1);
            $items = $this->getItems();
            $itemCount = $items->getCount();
            if ($current >= 0 && $current < $itemCount) {
                $item = $items->itemAt($current);
                if ($item->getItemType() !== TListItemType::EditItem) {
                    $item->setItemType($current % 2 ? TListItemType::AlternatingItem : TListItemType::Item);
                }
            }
            if ($value >= 0 && $value < $itemCount) {
                $item = $items->itemAt($value);
                if ($item->getItemType() !== TListItemType::EditItem) {
                    $item->setItemType(TListItemType::SelectedItem);
                }
            }
        }
    }