code to Modify Multiple selected rows in grid of axapta
TestTable _TestTable,
_TestTableAux;
;
for(_TestTable = TestTable_DS.getFirst();
_TestTable;
_TestTable = TestTable_DS.getnext())
{
ttsbegin;
select firstonly forupdate _TestTableAux
where _TestTableAux.recId = _TestTable.recId;
if(_TestTableAux)
{
TestTableAux.ID = "New Id";
TestTableAux.update();
}
ttscommit;
}