Grid Sorting

Hi,
When i am trying to sort by more than one column i am not getting the desired result
mygrid.enableStableSorting(true);

        mygrid.sortRows(1,“str”,“asc”);    //sort by the sibling column

        mygrid.sortRows(0,“str”,“des”);

As result of such command grid will be sorted by column 0 in desc order, and rows which are equal in column 0, will be sorted by column 1 in asc order
Does result differ from described one?