How to restore dataState of DataRow. It is used as restoreMode property of DataSet.
| NONE | "none" | Don't run restoring function. |
| AUTO | "auto" | If it is same with the existing value after updaing data row, restre dataState of DataRow to the past. |
| EXPLICIT | "explicit" | DataState or row is updated, only when calling DataSet.restoreUpdatedRows. |