TComponentList class

In unit Contnrs

List to manage component instances.

Declaration

pascal

TComponentList = class(TObjectList)

Inheritance

TComponentList
TObjectList
TList
TObject

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

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

Methods

`Notify`	protected
`GetItems`	protected
`SetItems`	protected
`HandleFreeNotify`	protected
`Destroy`	public	Destroys the instance.
`Add`	public	Add a component to the list.
`Extract`	public	Remove a component from the list without destroying it.
`Remove`	public	Remove a component from the list, possibly destroying it.
`IndexOf`	public	Search for an instance in the list.
`First`	public	First non-nil instance in the list.
`Last`	public	Last non-nil instance in the list.
`Insert`	public	Insert a new component in the list.

Inherited

From TObjectList (5)

Create FindInstanceOf GetItem OwnsObjects SetItem

From TList (26)

AddList Assign Capacity Clear Contains Count Delete Error Exchange Expand FPOAttachObserver FPODetachObserver FPONotifyObservers Get GetCapacity GetCount GetEnumerator GetList Grow List Move Pack Put SetCapacity SetCount Sort

From TObject (40)

AfterConstruction BeforeDestruction CheckDisposed ClassInfo ClassName ClassNameIs ClassParent ClassType CleanupInstance DefaultHandler DefaultHandlerStr Dispatch DispatchStr Disposed DisposeOf Equals FieldAddress Free FreeInstance GetDisposed GetHashCode GetInterface GetInterfaceByStr GetInterfaceEntry GetInterfaceEntryByStr GetInterfaceTable GetInterfaceWeak GetLastCastErrorInfo InheritsFrom InitInstance InstanceSize MethodAddress MethodName newinstance QualifiedClassName SafeCallException StringMessageTable SystemHasExtendedRTTI ToString UnitName

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.