Old value of the field.
Source position: db.pas line 469
|  public property TField.OldValue : variant | 
OldValue returns the value of the field prior to an edit operation. This feature is currently not supported in FPC.
| 
 | Value of the field as a variant value. | |
| 
 | Current value of the field. | |
| 
 | The new value of the field. |