Working with Lists

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The VCL/RTL includes many classes that represents lists or collections of items. They vary depending on the types of items they contain, what operations they support, and whether they are persistent.

The following table lists various list classes, and indicates the types of items they contain:

Object	Maintains
System.Classes.TList	A list of pointers
System.Classes.TThreadList	A thread-safe list of pointers
System.Contnrs.TBucketList	A hashed list of pointers
System.Contnrs.TObjectBucketList	A hashed list of object instances
System.Contnrs.TObjectList	A memory-managed list of object instances
System.Contnrs.TComponentList	A memory-managed list of components (that is, instances of classes descended from TComponent)
System.Contnrs.TClassList	A list of class references
Classes.TInterfaceList	A list of interface pointers.
System.Contnrs.TQueue	A first-in first-out list of pointers
System.Contnrs.TStack	A last-in first-out list of pointers
System.Contnrs.TObjectQueue	A first-in first-out list of objects
System.Contnrs.TObjectStack	A last-in first-out list of objects
Classes.TCollection	Base class for many specialized classes of typed items.
Classes.TStringList	A list of strings
System.IniFiles.THashedStringList	A list of strings with the form Name=Value, hashed for performance.

See Also

• Working with String Lists
• Common List Operations
• Persistent Lists
• Working with Strings