[Overview][Constants][Types][Classes][Procedures and functions][Index] Reference for unit 'db' (#fcl)

TBytesField

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Field class for fixed size byte array values

Declaration

Source position: db.pas line 739

type TBytesField = class(TBinaryField)

protected

  function GetDataSize; override;

public

  constructor Create(); override;

  

Create a new instance of a TBytesField class.

end;

Inheritance

TBytesField

  

Field class for fixed size byte array values

|

TBinaryField

  

Field class for working with binary field data

|

TField

  

Provide access to the contents of a single field in a record

|

TComponent,IUnknown,IInterfaceComponentReference

|

TPersistent

|

TObject

Description

TBytesField is the class used when a dataset must manage data of fixed-size binary type. (TField.DataType equals ftBytes). It initializes some of the properties of the TField class to be able to work with fixed-size byte fields.

It should never be necessary to create an instance of TBytesField manually, a field of this class will be instantiated automatically for each binary data field when a dataset is opened.

See also

TDataset

  

Base class for records-based data-access

TField

  

Provide access to the contents of a single field in a record

TVarBytesField

  

Field class for variable size byte array values

The latest version of this document can be found at lazarus-ccr.sourceforge.net.