API:Data.DB.TCheckConstraint

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Delphi

TCheckConstraint = class(TCollectionItem)

C++

class PASCALIMPLEMENTATION TCheckConstraint : public System::Classes::TCollectionItem

Properties

Type	Visibility	Source	Unit	Parent
class	public	Data.DB.pas Data.DB.hpp	Data.DB	Data.DB

Description

TCollectionItem represents an item in a collection.

Data.DB.TCheckConstraint inherits from System.Classes.TCollectionItem. All content below this line refers to System.Classes.TCollectionItem.

TCollectionItem represents an item in a collection.

A TCollection holds a group of TCollectionItem objects. TCollectionItems are created and destroyed by TCollection's Add and Clear methods. Each TCollectionItem has a Collection property that points to the TCollection object to which the item belongs.

Objects descending from TCollection can contain objects descending from TCollectionItem. For example, a TDBGridColumns object contains TColumn objects; these two classes are used by TDBGrid to represent grid columns.

See Also

• TCollection