mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-05-02 06:23:41 +02:00
62 lines
1.0 KiB
ObjectPascal
62 lines
1.0 KiB
ObjectPascal
unit Main;
|
|
|
|
{$mode objfpc}{$H+}
|
|
|
|
interface
|
|
|
|
uses
|
|
ComCtrls, db, DBGrids, memds, Forms, TADbSource, TAGraph, TASeries, Classes;
|
|
|
|
type
|
|
|
|
{ TForm1 }
|
|
|
|
TForm1 = class(TForm)
|
|
Chart1: TChart;
|
|
Chart1BarSeries1: TBarSeries;
|
|
Chart1LineSeries1: TLineSeries;
|
|
Datasource1: TDatasource;
|
|
DbChartSource1: TDbChartSource;
|
|
DBGrid1: TDBGrid;
|
|
MemDataset1: TMemDataset;
|
|
ToolBar1: TToolBar;
|
|
tbCopy: TToolButton;
|
|
procedure FormCreate(Sender: TObject);
|
|
procedure tbCopyClick(Sender: TObject);
|
|
end;
|
|
|
|
var
|
|
Form1: TForm1;
|
|
|
|
implementation
|
|
|
|
{$R *.lfm}
|
|
|
|
{ TForm1 }
|
|
|
|
{ Add dummy data to start with }
|
|
procedure TForm1.FormCreate(Sender: TObject);
|
|
const
|
|
N = 3;
|
|
var
|
|
i: Integer;
|
|
Fx, Fy: TField;
|
|
begin
|
|
Fx := MemDataset1.FieldByName('X');
|
|
Fy := MemDataset1.FieldByName('Y');
|
|
for i:= 1 to N do begin
|
|
MemDataset1.Append;
|
|
Fx.AsInteger := i;
|
|
Fy.AsFloat := Random;
|
|
MemDataset1.Post;
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.tbCopyClick(Sender: TObject);
|
|
begin
|
|
Chart1BarSeries1.ListSource.CopyFrom(DbChartSource1);
|
|
end;
|
|
|
|
end.
|
|
|