Unit 'DB' Package
[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] [#fcl]

TFields

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

Collection of #fcl.db.TField instances.

Declaration

Source position: db.pas line 1336

type TFields = class(TObject)

public

  constructor Create();

  

Create a new instance of TFields.

  destructor Destroy; override;

  

Free the TFields instance.

  procedure Add();

  

Add a new field to the list.

  procedure CheckFieldName();

  

Check field name for duplicate entries.

  procedure CheckFieldNames();

  

Check a list of field names for duplicate entries.

  procedure Clear;

  

Clear the list of fields.

  function FindField();

  

Find a field based on its name.

  function FieldByName();

  

Find a field based on its name.

  function FieldByNumber();

  

Search field based on its fieldnumber.

  function GetEnumerator;

  

Return an enumerator for the for..in construct.

  procedure GetFieldNames();

  

Get the list of fieldnames.

  function IndexOf();

  

Return the index of a field instance.

  procedure Remove();

  

Remove an instance from the list.

  property Count: Integer; [r]

  

Number of fields in the list.

  property Dataset: TDataSet; [r]

  

Dataset the fields belong to.

  property Fields []: TField; default; [rw]

  

Indexed access to the fields in the list.

end;

Inheritance

TFields

  

Collection of #fcl.db.TField instances.

|

TObject

Description

TFields mimics a TCollection class for the Fields property of TDataset instance. Since TField is a descendent of TComponent, it cannot be an item of a collection, and must be managed by another class.

See also

TField

  

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

TDataset

  

Base class for records-based data-access.

TDataset.Fields

  

Indexed access to the fields of the dataset.


Documentation generated on: Oct 27 2024