TNamedItem = class(TCollectionItem)
class PASCALIMPLEMENTATION TNamedItem : public System::Classes::TCollectionItem
TNamedItem is the base class for definitions used by datasets.
Use TNamedItem as a base class when defining a class for definitions that are maintained in a collection by a dataset. Sets of TNamedItem objects are maintained by a descendant of TDefCollection that is specific to the type of object defined.
Definition objects are used by datasets to specify the properties of database entities such as fields or indexes.