It probably depends on what you mean with "easy" :Smile_Ag:
You could rollback by hand the update using the
onChangingValuescallback and the
setFormattedValue : if you set the formatted value of a field to null, it will not change in your view.
[syntax="JS"]
table.onChangingValues = function(itemPos, visualUpdateInfo, itemName) {
[...]
visualUpdateInfo.setFormattedValue("my_field",null);
[...]
};
[/syntax]