Grid without data transaction

[cebola]

How to create a data store without transaction???

I use this code to change the value of cells/rows in my grid.



var grid=Ext.get('tbcreate'+cswNumTab).grid;
var record = grid.store.getAt(cswLin-grid.cswLinhaIni);
record.set('field'+cswCol,cswVlr);
record.commit();
return


But its very slow...