Find index of data value in the list.
Source position: fgl.pp line 385
| public function TFPGMapObject.IndexOfData( | 
| const AData: TData | 
| ):Integer; | 
| AData | 
 | Data value to search. | 
Index of AData in the list, -1 if not present.
IndexOfData returns the index of object AData in the list, or -1 if the data was not found in the list.
None.
| 
 | Find item based on key. | |
| 
 | Find index of a key in the list. |