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

TNumericField

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

Base class for all numerical data field classes

Declaration

Source position: db.pas line 546

type TNumericField = class(TField)

public

  constructor Create(); override;

  

Create a new instance of TNumericField

published

  property Alignment: TAlignment;

  

Alignment of the field

  property DisplayFormat: string; [rw]

  

Format string for display of numerical data

  property EditFormat: string; [rw]

  

Format string for editing of numerical data

end;

Inheritance

TNumericField

  

Base class for all numerical data field classes

|

TField

  

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

|

TComponent,IUnknown,IInterfaceComponentReference

|

TPersistent,IFPObserved

|

TObject

Description

TNumericField is an abstract class which overrides some of the methods of TField to handle numerical data. It also introduces or publishes a couple of properties that are only relevant in the case of numerical data, such as TNumericField.DisplayFormat and TNumericField.EditFormat.

Since TNumericField is an abstract class, it must never be instantiated directly. Instead one of the descendent classes should be created.

See also

TField

  

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

TNumericField.DisplayFormat

  

Format string for display of numerical data

TNumericField.EditFormat

  

Format string for editing of numerical data

TField.Alignment

  

Alignment for this field

TIntegerField

  

Alias for TLongintField

TLargeIntField

  

Field class for 64-bit signed integer data

TFloatField

  

Class for floating point values

TBCDField

  

Field class for Binary Coded Decimal (BCD) values


Documentation generated on: Jun 22 2020