SMART datagrid v.1 > Classes > GridBase
It will be fired just after the user starts cell editing or calls edit to normally start row updating.
Just before row updating, onUpdating event will be fired.
And, if throw an exception within this event handler, it will cancel row editing. v 1.3.8
grdMain.onUpdateStarted = function (grid, row) {
console.log('Row upadte started at ' + row.index());
}