private function _getFilteredColumnsByFilterPrefix(array $aColumns, $sFilterPrefix, $sTaxonomy)
{
if ($sTaxonomy) {
$aColumns = $this->oUtil->addAndApplyFilter($this, "{$sFilterPrefix}{$_GET['taxonomy']}", $aColumns);
}
return $this->oUtil->addAndApplyFilter($this, "{$sFilterPrefix}{$this->oProp->sClassName}", $aColumns);
}