TFieldDef.Create constructor

Member of TFieldDefpublicIn unit DB

Constructor for TFieldDef.

Declaration

pascal

constructor Create(ACollection: TCollection); override
constructor Create(AOwner: TFieldDefs; const AName: string; 
 ADataType: TFieldType; ASize: Integer; 
 ARequired: Boolean; AFieldNo: LongInt; 
 ACodePage: TSystemCodePage=CP_ACP); overload

Arguments

`ACollection`	TFieldDefs instance to which to append the definition, or `Nil`.
`AOwner`	Owner of the fielddef.
`AName`	Name of the field.
`ADataType`	Data type of the field.
`ASize`	Storage size for the field contents, or zero for fixed-size fields.
`ARequired`	Is the fields required or not.
`AFieldNo`	Number of the field.
`ACodePage`	Codepage for the string field.

Description

Create is the constructor for the TFieldDef class.

If a simple call is used, with a single argument ACollection, the inherited Create is called and the Field number is set to the incremented current index.

If the more complicated call is used, with multiple arguments, then after the inherited Create call, the Name, datatype, size, precision, FieldNo, Required and CodePage property are all set according to the passed arguments.

Errors

If a duplicate name is passed, then an exception will occur.

TFieldDef.Create constructor

Declaration

Arguments

Description

Errors

See also