TFPExprIdentifierDefs.Update procedure

Declaration

procedure Update(Item: TCollectionItem); override

Description

Not described here; this is what TCollection.Update says of it:

Handler called when an item in the collection has changed.

Update is called in the following cases:

1. An item is added to or removed from the collection.
2. An item is moved in the list, i.e. its Index property changes.
3. An item's DisplayName property changes.

Descendant classes can override this method to perform additional actions when the collection changes. The Item parameter indicates the item that was changed. This can be Nil