grid.clear()

popgri.clear(); // for reset previous celltemplate settings
tabis = new AW.XML.Table;
popgri.setCellModel(tabis);
popgri.refresh();
popgri.setColumnCount(10);
popgri.setRowCount(20);
popgri.setCellText(function(col, row){return col + "." + row});
popgri.refresh();

what can I do for display new data in a grid after clear() ?