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Initial index of this item.
Source position: classesh.inc line 502
public property TCollectionItem.ID : Integer |
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.
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Indexed array of items in the collection. |
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Index of the item in its managing collection TCollection.Items property. |