Otherwise missing cells will be nulled out by the auto update operation. The dictionary consists of the new values to be set on the row's unbound cells.
If the grid contains templated columns or is bound to some of the fields from the data source, the Values and Old Values must be updated to add those missing values.
before that i want just using Find control and casting and then retrieving all lot code. If values are same they could notify user to change the value(give new cell value).