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

# TMemoField

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

Base class for MEMO (text BLOB) field data

## Declaration

Source position: db.pas line 941

`type TMemoField = class(TBlobField)`
`public`
`constructor Create(); override;` |  | Create a new instance of the TMemoField class
`property CodePage: TSystemCodePage; [r]` |  | Codepage of the memo field string data
`published`
`property Transliterate: Boolean;` |  | Should the contents of the field be transliterated
`end;`

## Inheritance

`TMemoField` |  | Base class for MEMO (text BLOB) field data
`TBlobField` |  | Base class for BLOB field data
`TField` |  | Provide access to the contents of a single field in a record
`TComponent,IUnknown,IInterfaceComponentReference`
`TPersistent,IFPObserved`
`TObject`

## Description

TMemoField is the class used when a dataset must manage memo (Text BLOB) data. (TField.DataType equals ftMemo). It initializes some of the properties of the TField class. All methods to be able to work with memo fields have been implemented in the TBlobField parent class.

It should never be necessary to create an instance of TMemoField manually, a field of this class will be instantiated automatically for each memo 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
TBLOBField |  | Base class for BLOB field data
TWideMemoField |  | Field class for wide MEMO (widestring text BLOB) field data
TGraphicField |  | Field class for graphical BLOB field data