[ Version ( since = "4.2.10" ) ]
public bool value_is_valid_e (Value value) throws Error
Tells if value has been marked as being invalid by invalidate_value
.
This method is mainly used by database providers' implementations to report any error while reading a value from the database.
| this |
a Row. |
| value |
a Value belonging to this (obtained with get_value). |
|
|