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Base class to manage collections of named objects.
Source position: classesh.inc line 522
type TCollection = class(TPersistent) |
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public |
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constructor Create(); |
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Creates a new collection. |
destructor Destroy; override; |
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Destroys the collection and frees all the objects it manages. |
function Owner; |
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Owner of the collection. |
function Add; |
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Creates and adds a new item to the collection. |
procedure Assign(); override; |
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Assigns one collection to another. |
procedure BeginUpdate; virtual; |
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Start an update batch. |
procedure Clear; |
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Removes all items from the collection. |
procedure EndUpdate; virtual; |
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Ends an update batch. |
procedure Delete(); |
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Delete an item from the collection. |
function GetEnumerator; |
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Create an IEnumerator instance |
function GetNamePath; override; |
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Overrides TPersistent.GetNamePath to return a proper pathname. |
function Insert(); |
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Insert an item in the collection. |
function FindItemID(); |
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Searches for an Item in the collection, based on its TCollectionItem.ID property. |
procedure Exchange(); |
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Exchange 2 items in the collection |
procedure Move(); |
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procedure Sort(); |
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Sort the items in the collection |
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Number of items in the collection. |
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property ItemClass: TCollectionItemClass; [r] |
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Class pointer for each item in the collection. |
property Items []: TCollectionItem; [rw] |
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Indexed array of items in the collection. |
end; |
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Base class to manage collections of named objects. |
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Base class for streaming system and persistent properties. |
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Base class of all classes. |
TCollection implements functionality to manage a collection of named objects. Each of these objects needs to be a descendant of the TCollectionItem class. Exactly which type of object is managed can be seen from the TCollection.ItemClass property.
Normally, no TCollection is created directly. Instead, a descendants of TCollection and TCollectionItem are created as a pair.
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Basic object that is managed by a TCollection class. |