[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'Classes' (#rtl)


[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Basic object that is managed by a TCollection class.


Source position: classesh.inc line 483

type TCollectionItem = class(TPersistent)


  constructor Create(); virtual;


Creates a new instance of this collection item.

  destructor Destroy; override;


Destroys this collection item.

  function GetNamePath; override;


Returns the namepath of this collection item.

  property Collection: TCollection; [rw]


Pointer to the collection managing this item.

  property ID: Integer; [r]


Initial index of this item.

  property Index: Integer; [rw]


Index of the item in its managing collection TCollection.Items property.

  property DisplayName: string; [rw]


Name of the item, displayed in the object inspector.





Basic object that is managed by a TCollection class.




Base class for streaming system and persistent properties.




TCollectionItem and TCollection form a pair of base classes that manage a collection of named objects. The TCollectionItem is the named object that is managed, it represents one item in the collection. An item in the collection is represented by three properties: TCollectionItem.DisplayName, TCollection.Index and TCollectionItem.ID.

A TCollectionItem object is never created directly. To manage a set of named items, it is necessary to make a descendant of TCollectionItem to which needed properties and methods are added. This descendant can then be managed with a TCollection class. The managing collection will create and destroy it's items by itself, it should therefore never be necessary to create TCollectionItem descendants manually.

See also



Base class to manage collections of named objects.

Documentation generated on: Jun 22 2020