TComponentDataLink

type TComponentDataLink = class(TDataLink)

protected

  procedure RecordChanged(); override;

Signals the OnRecordChanged event handler when assigned.

  procedure DataSetChanged; override;

Signals the OnDatasetChanged event handler when assigned.

  procedure ActiveChanged; override;

Signals an event handler when the Active property is changed.

  procedure LayoutChanged; override;

Signals the OnLayoutChanged event handler when assigned.

  procedure DataSetScrolled(); override;

Signals the OnDataSetScrolled event handler when assigned.

  procedure FocusControl(); override;

Signals the OnFocusControl event handler when assigned.

  procedure CheckBrowseMode; override;

Calls the inherited method.

  procedure EditingChanged; override;

Signals the OnEditingChanged event handler when assigned.

  procedure UpdateData; override;

Signals the OnUpdateData event handler when assigned.

  function MoveBy(); override;

Moves the position in the dataset by the specified number of rows.

  property Modified: Boolean; [rw]

Indicates if the component or the linked dataset has been changed.

public

  property OnRecordChanged: TFieldNotifyEvent; [rw]

OnRecordChanged - event handler for a change in the current record.

  property OnDataSetChanged: TDatasetNotifyEvent; [rw]

OnDataseChanged - event handler for a change in the attached dataset.

  property OnNewDataSet: TDataSetNotifyEvent; [rw]

OnNewdataset - event handler for formation of a link to a new dataset.

  property OnDataSetOpen: TDataSetNotifyEvent; [rw]

OnDataseOpen - event handler when the dataset is open.

  property OnInvalidDataSet: TDataSetNotifyEvent; [rw]

OnInvalidDataset - event handler when the dataset is invalid.

  property OnInvalidDataSource: TDataSetNotifyEvent; [rw]

OnInvalidDataSource - event handler when the data source is invalid.

  property OnFocusControl: TFocusControlEvent; [rw]

Event handler signalled when the grid control receives focus.

  property OnLayoutChanged: TDataSetNotifyEvent; [rw]

OnLayoutChanged - event handler when the layout of the dataset has changed.

  property OnDataSetClose: TDataSetNotifyEvent; [rw]

OnDataseClose - event handler when the dataset is closed.

  property OnDataSetScrolled: TDataSetScrolledEvent; [rw]

OnDataseScrolled - event handler when the dataset is scrolled.

  property OnEditingChanged: TDataSetNotifyEvent; [rw]

Event handler signalled when the value for the Editing property has been changed.

  property OnUpdateData: TDataSetNotifyEvent; [rw]

Event handler signalled to perform actions for pending changes to the linked dataset.

  property DataSetName: string; [rw]

Contains the name for the linked dataset.

  property Fields []: TField; [r]

Provides indexed access to fields in the linked dataset by their ordinal position.

  property VisualControl;

end;

TComponentDataLink

Maintains an association between a component and a dataset.

TDataLink

TPersistent,IFPObserved

TObject

TCustomDBGrid.DataLink

Datalink for the component with event handlers for the linked dataset.

TDataLink