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    <p>Here is a generic code approach to your question</p> <pre><code>unit Unit1; interface uses Classes ,DB ,DBCtrls ; type TDataAwareComponent = class(TComponent) private { private declarations } FDataLink : TFieldDataLink; FFromDateChange : Boolean; function GetDataField: string; function GetDataSource: TDataSource; function GetField: TField; function GetReadOnly: Boolean; procedure SetDataField(const Value: string); procedure SetDataSource(const Value: TDataSource); procedure SetReadOnly(const Value: Boolean); function GetDateProperty: TDateTime; procedure SetDateProperty(const Value: TDateTime); protected { protected declarations } procedure DataChange(Sender : TObject); public { public declarations } constructor Create(AOwner : TComponent);override; destructor Destroy;override; public property Field : TField read GetField; property DateProperty : TDateTime read GetDateProperty write SetDateProperty; published { published declarations } property DataSource : TDataSource read GetDataSource write SetDataSource; property DataField : string read GetDataField write SetDataField; property ReadOnly : Boolean read GetReadOnly write SetReadOnly; end; implementation { TDataAwareComponent } {------------------------------------------------------------------------------} constructor TDataAwareComponent.Create(AOwner: TComponent); begin inherited Create(AOwner); FDataLink := TFieldDataLink.Create; FDataLink.Control := Self; FDataLink.OnDataChange := DataChange; end; {------------------------------------------------------------------------------} destructor TDataAwareComponent.Destroy; begin FDataLink.Free; FDataLink := nil; inherited; end; {------------------------------------------------------------------------------} procedure TDataAwareComponent.DataChange(Sender: TObject); begin // Here a visual object would display the underlying field value. // For example if this component was a TEdit // the code would be something like { if FDataLink.Active then Self.Text := Field.AsString; And on the exit event of the TEdit the code would be reversed so the field can take the value the user entered. Since you do not need any UI interaction propably this event is useless to you. } // Of course there are more issues you should cover to // have a complete working solution. // This is only demostration code. end; {------------------------------------------------------------------------------} function TDataAwareComponent.GetDataField: string; begin Result := FDataLink.FieldName end; {------------------------------------------------------------------------------} function TDataAwareComponent.GetDataSource: TDataSource; begin Result := FDataLink.DataSource; end; {------------------------------------------------------------------------------} function TDataAwareComponent.GetDateProperty: TDateTime; begin //You do not need a separate property since you can access directly the field value. Result := 0; if Assigned(Field) and (Field.DataType in [ftTime,ftDate,ftDateTime] then Result := Field.AsDateTime; end; {------------------------------------------------------------------------------} function TDataAwareComponent.GetField: TField; begin Result : FDataLink.Field; end; {------------------------------------------------------------------------------} function TDataAwareComponent.GetReadOnly: Boolean; begin Result := FDataLink.ReadOnly; end; {------------------------------------------------------------------------------} procedure TDataAwareComponent.SetDataField(const Value: string); begin FDataLink.FieldName := Value; end; {------------------------------------------------------------------------------} procedure TDataAwareComponent.SetDataSource(const Value: TDataSource); begin FDataLink.DataSource := Value; end; {------------------------------------------------------------------------------} procedure TDataAwareComponent.SetDateProperty(const Value: TDateTime); begin if Assigned(Field) then begin FFromDateChange := True; try Field.DataSet.Edit; Field.Value := Value; finally FFromDateChange := False; end; end; end; {------------------------------------------------------------------------------} procedure TDataAwareComponent.SetReadOnly(const Value: Boolean); begin FDataLink.ReadOnly := Value; end; {------------------------------------------------------------------------------} end. </code></pre>
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    1. POMake Non-Windowed Component Data Aware
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    1. USGeorge Trifidis
    1. USGeorge Trifidis
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      1. VTUpMod
    1. COMany thanks. Don't know why, but I had a real mental block on this. Also, thanks for answering the question, rather than asking why I would be so dumb as to ask it.
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      1. USMax Williams
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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