allow sub-tags to do work during START before rendering
this makes it possible to have tags out of order and to
have rendering work correctly
*/
/* todo: perf -- should you be able to turn this off for perf? */
fragment.invoke(sw);
/* todo: this needs to move into the DataGridTagModel */
PagerModel pm = _dataGridTagModel.getState().getPagerModel();
_dataGridTagModel.getDataSet().createWindow(pm.getRow(), pm.getPageSize());