def METHOD_NAME(self):
    sort_col_idx = int(self.request.GET['iSortCol_0'])
    col = self.headers.header[sort_col_idx]
    sort_prop = hasattr(col, "prop_name") and col.prop_name
    desc = self.request.GET.get('sSortDir_0') == 'desc'
    return sort_prop, desc