Exclude Multiple Members with SetfilterExt

Hello,

I want to filterout some values based on multiple selection from a listbox. The sample code i gave below works for only 1 selected value, in that case :.getselectedValue.  Is it possible to achieve this with multiple selections also? Thanks

DS_1.setFilterExt("_6yhOmJZoEeSmc-tZuBi5XA", "!"+LISTBOX_2.getSelectedValues());

Regards,

Onur