TFieldsEnumerator¶

Default enumerator for the fields collection of a dataset.

Declaration¶

Source position: db.pas line 1327

type

  TFieldsEnumerator = class
  public
    constructor Create;
    function MoveNext : Boolean;
    property Current: TField; {r}
  end;

Inheritance¶

Description¶

TFieldsEnumerator implements all the methods of IEnumerator so a TFields instance can be used in a for..in construct. TFieldsEnumerator returns all the fields in the TFields collection. Therefor the following construct is possible:

Var
  F : TField;

begin
   // ...
   For F in MyDataset.Fields do
     begin
     // F is of type TField.
     end;
   // ...

Do not create an instance of TFieldsEnumerator manually. The compiler will do all that is needed when it encounters the for..in construct.

Properties¶

Member	Visibility	Description
Current read only	public	Return the current field.

Methods¶

Member	Visibility	Description
Create	public	Create a new instance of TFieldsEnumerator.
MoveNext	public	Move the current field to the next field in the collection.

Name	Description
TField	Provide access to the contents of a single field in a record.
TFields	Collection of #fcl.db.TField instances.
#rtl.system.IEnumerator