Data.DB.TField.GetIsNull

• Up to Parent: TField

Delphi

function GetIsNull: Boolean; virtual;

C++

virtual bool __fastcall GetIsNull();

Properties

Type	Visibility	Source	Unit	Parent
function	protected	Data.DB.pas Data.DB.hpp	Data.DB	TField

Description

Returns whether the field has data or not.

The GetIsNull method returns whether the field has data or not. If the field has no data, GetIsNull returns True. Otherwise, GetIsNull returns False.

See Also

• GetData

Code Examples

• TFieldGetData (Delphi)
• TFieldGetData (C++)