Ext Grid选中行问题

afteredit : ( Object e )
Fires after a cell is edited. The edit event object has the following properties 
grid - This grid
record - The record being edited
field - The field name being edited
value - The value being set
originalValue - The original value for the field, before the edit.
row - The grid row index
column - The grid column index
grid.on('afteredit', afterEdit, this );

function afterEdit(e) {
    // execute an XHR to send/commit data to the server, in callback do (if successful):
    e.record.commit();
};