Prado\Web\UI\WebControls\TDataBoundControl::setDataSourceID PHP Method

    public function setDataSourceID($value)
    {
        $dsid = $this->getViewState('DataSourceID', '');
        if ($dsid !== '' && $value === '') {
            $this->_requiresBindToNull = true;
        }
        $this->setViewState('DataSourceID', $value, '');
        $this->onDataSourceChanged();
    }