querymodul.pas

delphi renyuanguanlixinxioxitong

unit QueryModul;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ComCtrls, ToolWin, DB, ADODB, Grids, DBGrids, ExtCtrls;

type
  TfrmQueryModul = class(TForm)
    CoolBar1: TCoolBar;
    ToolBar1: TToolBar;
    tbtnQuery: TToolButton;
    tbtnSelect: TToolButton;
    tbtnView: TToolButton;
    tbtnExit: TToolButton;
    Panel1: TPanel;
    Panel2: TPanel;
    dbgQuery: TDBGrid;
    aqryQuery: TADOQuery;
    dsQuery: TDataSource;
    procedure tbtnQueryClick(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  protected
     function funQuery()  :integer; virtual; abstract;
     function funSelect() :integer; virtual; abstract;
     function funView()  :integer;  virtual; abstract;
     function funExit()  :integer;  virtual; abstract;
  public
    { Public declarations }
  end;

var
  frmQueryModul: TfrmQueryModul;

implementation
uses DataModual;
{$R *.dfm}

procedure TfrmQueryModul.tbtnQueryClick(Sender: TObject);
begin
  Case ((Sender as TComponent).Tag) of
     10: begin   //查询
           funQuery() ;
         end;
     20: begin   //选择
           funSelect();
         end;
     30: begin   //预览
           funView();
         end;
     40: begin //退出
            funExit();
         end;
  end;
end;

procedure TfrmQueryModul.FormClose(Sender: TObject;
  var Action: TCloseAction);
begin
   if aqryQuery.Active then aqryQuery.Close;
end;

end.