Prado\Web\UI\WebControls\TDataGrid::setEditItemIndex PHP Method

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