cx.~pas

Delphi数据库编程

unit CX;

interface

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

type
  TForm2 = class(TForm)
    Label1: TLabel;
    ComboBox1: TComboBox;
    Label2: TLabel;
    Query1: TQuery;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
    procedure ComboBox1Change(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

uses Main;

{$R *.dfm}

procedure TForm2.FormCreate(Sender: TObject);
var
   CurDir:string;
begin
   getdir(0,CurDir);
   query1.DatabaseName:=CurDir;
end;

procedure TForm2.ComboBox1Change(Sender: TObject);
begin
  Query1.Sql.Clear;
  Query1.SQL.Add('SELECT *  FROM GZB');
  Query1.SQL.Add('WHERE 职称='+''''+ComboBox1.Text +'''');
  query1.Active :=True;
  Query1.Open;

end;

procedure TForm2.Button1Click(Sender: TObject);
begin
  Form2.Close ;
  Form1.Show;
end;

end.