bool UpdateCallback (int recordsAffected, Exception exception)
{
FormViewUpdatedEventArgs dargs = new FormViewUpdatedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
OnItemUpdated (dargs);
if (!dargs.KeepInEditMode)
EndRowEdit (true, false);
return dargs.ExceptionHandled;
}