$rows = self::getRows($this);
CRM_Utils_Hook::searchColumns($contextName, $columnHeaders, $rows, $this);
$rowsEmpty = count($rows) ? FALSE : TRUE;
$rows = self::getRows($this);
CRM_Utils_Hook::searchColumns($contextName, $columnHeaders, $rows, $this);
$rowsEmpty = count($rows) ? FALSE : TRUE;