TComponentList¶

List to manage component instances.

Declaration¶

Source position: contnrs.pp line 104

type

  TComponentList = class(TObjectList)
  public
    destructor Destroy;
    function Add : Integer;
    function Extract : TComponent;
    function Remove : Integer;
    function IndexOf : Integer;
    function First : TComponent;
    function Last : TComponent;
    procedure Insert;
    property Items[Index : Integer]: TComponent; {rw}
  end;

Inheritance¶

Description¶

TComponentList is a TObjectList descendent which has as the default array property TComponents instead of objects. It overrides some methods so only components can be added.

In difference with TObjectList, TComponentList removes any TComponent from the list if the TComponent instance was freed externally. It uses the FreeNotification mechanism for this.

Properties¶

Member	Visibility	Description
Items	public	Index-based access to the elements in the list.

See all Properties

Methods¶

Member	Visibility	Description
Add	public	Add a component to the list.
Destroy	public	Destroys the instance.
Extract	public	Remove a component from the list without destroying it.
First	public	First non-nil instance in the list.
IndexOf	public	Search for an instance in the list.
Insert	public	Insert a new component in the list.
Last	public	Last non-nil instance in the list.
Remove	public	Remove a component from the list, possibly destroying it.

See all Methods

Name	Description
#rtl.classes.TList
TFPObjectList	TFPList descendent which manages objects.
TObjectList	List to manage object instances.
TClassList	List of classes.