unit1.pas

Delphi7应用编程150例附书源码.rar

unit Unit1;

interface

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

type
  TfrmMain = class(TForm)
    Memo1: TMemo;
    DBGrid1: TDBGrid;
    Edit1: TEdit;
    btn_Execute: TButton;
    Query1: TQuery;
    DataSource1: TDataSource;
    Database1: TDatabase;
    procedure FormCreate(Sender: TObject);
    procedure FormActivate(Sender: TObject);
    procedure btn_ExecuteClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmMain: TfrmMain;

implementation

{$R *.dfm}

procedure TfrmMain.FormCreate(Sender: TObject);
begin
    self.Edit1.Clear;
    self.Memo1.Clear;
    self.Query1.RequestLive:=true;
end;

procedure TfrmMain.FormActivate(Sender: TObject);
begin
    self.Edit1.SetFocus;
end;

procedure TfrmMain.btn_ExecuteClick(Sender: TObject);
begin
    self.Database1.DatabaseName:=self.Edit1.Text;
    self.Database1.Connected:=true;
    self.Query1.DatabaseName:=self.Database1.DatabaseName;
    self.Query1.SQL.Text:=self.Memo1.Text;
    self.Query1.Active:=true;
end;

end.