Class TPDBBitBtn (unit Dbbtn) |
Inherits from
TBitBtn
constructor Create(Owner: TComponent);
destructor Destroy;
procedure CmGetDataLink(var Msg: TMessage);
In Delphi 2.
procedure DataChange(Sender: TObject);
The record changed, so update the Enabled to match.
function GetDataField: string;
Return the name of the linked database field.
function GetDataSource: TDataSource;
Return a reference to the data source, or nil.
procedure Notification(Component: TComponent; Operation: TOperation);
If the DataSource component is removed from the form, then clear the
DataSource pointer in the data link.
procedure SetDataField(const Field: string);
Change the database field name.
procedure SetDataSource(DataSource: TDataSource);
Change the data source.
procedure SetReverseLogic(Value: boolean);
Refresh the link when ReverseLogic is changed
property DataField : string
property DataSource : TDataSource
property ReverseLogic : Boolean
fDataLink : TFieldDataLink;
FReverseLogic : Boolean;
constructor Create(Owner: TComponent);
destructor Destroy;
procedure CmGetDataLink(var Msg: TMessage);
In Delphi 2.0, a data aware control must respond to
the Cm_GetDataLink message by returning its
data link reference.
procedure DataChange(Sender: TObject);
The record changed, so update the Enabled to match.
function GetDataField: string;
Return the name of the linked database field.
function GetDataSource: TDataSource;
Return a reference to the data source, or nil.
procedure Notification(Component: TComponent; Operation: TOperation);
If the DataSource component is removed from the form, then clear the
DataSource pointer in the data link.
procedure SetDataField(const Field: string);
Change the database field name.
procedure SetDataSource(DataSource: TDataSource);
Change the data source. In Delphi 2.0, request notification if
the DataSource component is removed from the form.
procedure SetReverseLogic(Value: boolean);
Refresh the link when ReverseLogic is changed
property DataField : string
property DataSource : TDataSource
property ReverseLogic : Boolean
fDataLink : TFieldDataLink;
FReverseLogic : Boolean;