Data.DB.TFieldsAutoCreationMode
Delphi
TFieldsAutoCreationMode = (acExclusive, acCombineComputed, acCombineAlways);
C++
enum DECLSPEC_DENUM TFieldsAutoCreationMode : unsigned char { acExclusive, acCombineComputed, acCombineAlways };
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| enum | public | Data.DB.pas Data.DB.hpp |
Data.DB | Data.DB |
Description
Enumerates the behaviors for creating the automatic fields.
Data.DB.TFieldsAutoCreationMode has the following values:
| Value | Meaning |
|---|---|
|
|
When there are no persistent fields at all, then automatic fields are created. This is the default mode. |
|
|
The automatic fields are created when the dataset has no persistent fields or there are only calculated persistent fields. This is a convenient way to create the persistent calculated fields at design time and let the dataset create automatic data fields. |
|
|
Automatic fields for the database fields will be created when there are no persistent fields. |