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TMS VCL Chart
Programmatic use of DBAdvChartView & TDBAdvGDIPChartView
Programmatic use of DBAdvChartView & TDBAdvGDIPChartView
Below is a code sample to show values from a Microsoft Access Database, using an AdoDataSet, AdoConnection and a Datasource.
Drop a TDBAdvGDIPChartView, TAdoConnection, TAdoTable and a TDataSource on the form. Insert this code in the procedure FormCreate:
procedure TForm1.FormCreate(Sender: TObject); var I: integer; begin DBAdvGDIPChartView1.Panes[0].BorderColor := clBlack; DBAdvGDIPChartView1.Panes[0].BorderWidth := 3; with DBAdvGDIPChartView1.Panes[0] do begin Series.Clear; //Set connection string to database ADOConnection1.ConnectionString := 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=sales.mdb;Persist Security Info=False'; ADOConnection1.Connected := true; //Set tablename ADOTable1.Connection := ADOConnection1; ADOTable1.TableName := 'Sales'; //link to Datasource and datasource to chart DataSource1.DataSet := ADOTable1; //Datasource property of Chart DataSource := DataSource1; XAxis.Position := xNone; YAxis.Position := yNone; Title.Color := RGB(255, 255, 210); Title.ColorTo := RGB(255, 255, 210); Title.BorderColor := clBlack; Title.BorderWidth := 1; Title.GradientDirection := cgdVertical; Title.Size := 50; Title.Text := 'Database Spider Chart'; Title.Font.Size := 14; Title.Font.Style := [fsBold]; Background.GradientType := gtHatch; Background.HatchStyle := HatchStyleWideDownwardDiagonal; Background.Color := RGB(255, 255, 210); BackGround.ColorTo := clWhite; Legend.Visible := false; Margin.LeftMargin := 0; Margin.rightMargin := 0; Margin.TopMargin := 0; series.DonutMode := dmStacked; YAxis.AutoUnits := false; YGrid.MajorDistance := 50; YGrid.MinorDistance := 10; YGrid.MinorLineColor := clSilver; YGrid.MajorLineColor := clDkGray; YGrid.MinorLineStyle := psDash; Series.Add; with Series[0] do begin Pie.LegendOffsetTop := (Self.Height div 2) - 150; Pie.LegendColor := clRed; Color := clRed; FieldNameValue := 'Product X'; FieldNameXAxis := 'Sales by Region'; LegendText := 'Product X'; Pie.LegendTitleColor := clRed; Pie.ValueFont.Color := clRed; end; Series.Add; with Series[1] do begin Pie.LegendOffsetTop := (Self.Height div 2); Pie.LegendColor := clGreen; Color := clGreen; Pie.ShowGrid := false; YAxis.Visible := false; FieldNameValue := 'Product Y'; FieldNameXAxis := 'Sales by Region'; LegendText := 'Product Y'; Pie.LegendTitleColor := clGreen; Pie.ValueFont.Color := clGreen; End; Series.Add; with Series[2] do begin Pie.LegendOffsetTop := (Self.Height div 2) + 150; Pie.LegendColor := clBlue; Color := clBlue; Pie.ShowGrid := false; YAxis.Visible := false; FieldNameValue := 'Combined'; FieldNameXAxis := 'Sales by Region'; LegendText := 'Combined'; Pie.LegendTitleColor := clBlue; Pie.ValueFont.Color := clBlue; end; for I := 0 to Series.Count - 1 do begin with Series[I] do begin YAxis.MajorUnit := 50; YAxis.MajorUnit := 25; Pie.LegendTitleVisible := true; Pie.LegendOpacity := 50; Pie.LegendOpacityto := 0; Pie.LegendTitleOpacity := 50; Pie.LegendGradientType := gtForwardDiagonal; Pie.LegendBorderColor := clBlack; Pie.Position := spCustom; Pie.Left := self.Width div 3; Pie.Top := self.Height div 2; Pie.LegendFont.Size := 10; ValueFormat := '$%g,000'; Pie.ValueFont.Size := 10; ChartType := ctSpider; Opacity := 50; LineColor := clBlack; AutoRange := arCommonZeroBased; Pie.Size := 400; Pie.ShowValues := true; Pie.ValuePosition := vpOutSideSlice; Pie.LegendPosition := spCustom; Pie.LegendOffsetLeft := Self.Width - 150; end; end; // open connection ADOTable1.Active := true; end; end;