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

TObjectList

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

List to manage object instances.

Declaration

Source position: contnrs.pp line 74

type TObjectList = class(TList)

public

  constructor Create();

  

Create a new object list.

  function Add();

  

Add an object to the list.

  function Extract();

  

Extract an object from the list.

  function Remove();

  

Remove (and possibly free) an element from the list.

  function IndexOf();

  

Search for an object in the list

  function FindInstanceOf();

  

Search for an instance of a certain class

  procedure Insert();

  

Insert an object in the list.

  function First;

  

Return the first non-nil object in the list

  function Last;

  

Return the last non-nil object in the list.

  property OwnsObjects: Boolean; [rw]

  

Should the list free elements when they are removed.

  property Items []: TObject; default; [rw]

  

Indexed access to the elements of the list.

end;

Inheritance

TObjectList

  

List to manage object instances.

|

TList,IFPObserved

|

TObject

Description

TObjectList is a TList descendent which has as the default array property TObjects instead of pointers. By default it also manages the objects: when an object is deleted or removed from the list, it is automatically freed. This behaviour can be disabled when the list is created.

In difference with TFPObjectList, TObjectList offers a notification mechanism of list change operations: insert, delete. This slows down bulk operations, so if the notifications are not needed, TFPObjectList may be more appropriate.

See also

#rtl.classes.TList

TFPObjectList

  

TFPList descendent which manages objects.

TComponentList

  

List to manage component instances.

TClassList

  

List of classes.


Documentation generated on: Jun 22 2020