unit6.pas

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unit Unit6;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, DBTables, StdCtrls, Grids, DBGrids, ExtCtrls;

type
  TForm6 = class(TForm)
    Label1: TLabel;
    Panel1: TPanel;
    DBGrid1: TDBGrid;
    DBGrid2: TDBGrid;
    DBGrid3: TDBGrid;
    RadioButton1: TRadioButton;
    RadioButton2: TRadioButton;
    Edit1: TEdit;
    Button1: TButton;
    Table1: TTable;
    Table2: TTable;
    Table3: TTable;
    DataSource1: TDataSource;
    DataSource2: TDataSource;
    DataSource3: TDataSource;
    procedure RadioButton1Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure RadioButton2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form6: TForm6;

implementation

uses Unit2;

{$R *.dfm}

procedure TForm6.RadioButton1Click(Sender: TObject);
begin
EDIT1.text:=inttostr(table3.RecordCount);
end;

procedure TForm6.Button1Click(Sender: TObject);
begin
close;
form2.show;
end;

procedure TForm6.RadioButton2Click(Sender: TObject);
begin
Table3.Active:=False;
Table3.MasterFields:='';
Table3.IndexName:='';
Table3.Active:=True;
EDIT1.text:=inttostr(Table3.RecordCount);
Table3.Active:=False;
Table3.MasterSource:=DataSource2;
Table3.MasterFields:='专业班级';
Table3.IndexName:='ZYBJ';
Table3.Active:=True;
end;

end.