System.Classes.TCollectionNotification
Delphi
TCollectionNotification = (cnAdded, cnExtracting, cnDeleting);
C++
enum DECLSPEC_DENUM TCollectionNotification : unsigned char { cnAdded, cnExtracting, cnDeleting };
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| enum | public | System.Classes.pas System.Classes.hpp |
System.Classes | System.Classes |
Description
TCollectionNotification indicates the type of change that is made to the items in a collection.
The following table lists the values for TCollectionNotification:
| Value | Meaning |
|---|---|
|
cnAdded |
An item was just added to the collection. |
|
cnExtracting |
An item is about to be removed from the collection (but not freed). |
|
cnDeleting |
An item is about to be removed from the collection and then freed. |