Reference for package '#rtl'

TCollectionItem.ID

Initial index of this item.

Declaration

Source position: classesh.inc line 503

public Property
  ID : Integer;

Description

ID is the initial value of TCollectionItem.Index ; it doesn't change after the index changes. It can be used to uniquely identify the item. The ID property doesn't change as items are added and removed from the collection.

While the TCollectionItem.Index property forms a continuous series, ID does not. If items are removed from the collection, their ID is not used again, leaving gaps. Only when the collection is initially created, the ID and Index properties will be equal.

See also

Name Description
Integer A signed 16-bits integer
TCollectionItem.Index Index of the item in its managing collection TCollection.Items property.
TCollection.Items Indexed array of items in the collection.