ChartDbF.pas
资源名称:delphi.rar [点击查看]
上传用户:fh681027
上传日期:2022-07-23
资源大小:1959k
文件大小:1k
源码类别:
Delphi控件源码
开发平台:
Delphi
- unit ChartDbF;
- interface
- uses
- SysUtils, Windows, Messages, Classes, Graphics, Controls,
- Forms, Dialogs, Grids, DBGrids, DB, DBTables, ExtCtrls, TeEngine, Series,
- TeeProcs, Chart, DBChart, StdCtrls;
- type
- TForm1 = class(TForm)
- Table1: TTable;
- DataSource1: TDataSource;
- DBGrid1: TDBGrid;
- DBChart1: TDBChart;
- Series1: TPieSeries;
- Splitter1: TSplitter;
- RadioArea: TRadioButton;
- RadioPopulation: TRadioButton;
- procedure DataSource1StateChange(Sender: TObject);
- procedure RadioPopulationClick(Sender: TObject);
- procedure RadioAreaClick(Sender: TObject);
- private
- { Private declarations }
- public
- { Public declarations }
- end;
- var
- Form1: TForm1;
- implementation
- {$R *.DFM}
- procedure TForm1.DataSource1StateChange(Sender: TObject);
- var
- Title: string;
- begin
- case Table1.State of
- dsBrowse: Title := 'Browse';
- dsEdit: Title := 'Edit';
- dsInsert: Title := 'Insert';
- else
- Title := 'Other state';
- end;
- Caption := 'Grid Demo - ' + Title;
- end;
- procedure TForm1.RadioPopulationClick(Sender: TObject);
- begin
- DBChart1.Title.Text [0] := 'Population of Countries';
- (DBChart1.Series [0] as TPieSeries).
- PieValues.ValueSource := 'Population';
- end;
- procedure TForm1.RadioAreaClick(Sender: TObject);
- begin
- DBChart1.Title.Text [0] := 'Area of Countries';
- (DBChart1.Series [0] as TPieSeries).
- PieValues.ValueSource := 'Area';
- end;
- end.