Data.DB.TFieldKind
Delphi
TFieldKind = (fkData, fkCalculated, fkLookup, fkInternalCalc, fkAggregate);
C++
enum DECLSPEC_DENUM TFieldKind : unsigned char { fkData, fkCalculated, fkLookup, fkInternalCalc, fkAggregate };
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| enum | public | Data.DB.pas Data.DB.hpp |
Data.DB | Data.DB |
Description
TFieldKind indicates what type of information a field component represents.
TFieldKind can take one of the following values:
| Value | Description |
|---|---|
|
fkData |
Field represents a physical field in a database table |
|
fkCalculated |
Field is calculated in an OnCalcFields event handler |
|
fkLookup |
Field is a lookup field. (Not implemented for fields on unidirectional datasets) |
|
fkInternalCalc |
Field is calculated but values are stored in the dataset. |
|
fkAggregate |
Field represents a maintained aggregate in a client dataset. |