TCollectionChangedAction Enumeration
Definition
Describes the action that caused a CollectionChanged event.
Delphi
type TCollectionChangedAction = caAdded..caChangedConstants
| caAdded |
An item was added to the collection. |
| caRemoved |
An item was removed from the collection. |
| caExtracted |
An item was removed from the collection without considering ownership. |
| caReplaced |
An item was replaced in the collection. |
| caMoved |
An item was moved within the collection. |
| caReset |
The content of the collection changed dramatically. |
| caChanged |
An item in the collection was changed. |