unit20.pas

本人用delphi开发的一个小型医院管理系统。

unit Unit20;

interface

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

type
  TForm20 = class(TForm)
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    TabSheet2: TTabSheet;
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Label3: TLabel;
    Edit2: TEdit;
    Edit3: TEdit;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    DBGrid1: TDBGrid;
    Button4: TButton;
    Button5: TButton;
    Button6: TButton;
    ADOConnection1: TADOConnection;
    ADOQuery1: TADOQuery;
    ADOQuery2: TADOQuery;
    DataSource1: TDataSource;
    DataSource2: TDataSource;
    DBGrid2: TDBGrid;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Button6Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form20: TForm20;
  Bedno,Isfree:Char;
implementation

{$R *.dfm}

procedure TForm20.FormCreate(Sender: TObject);
begin
  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('select  *  from  chuangwei');
  adoquery1.Open;
end;

procedure TForm20.Button1Click(Sender: TObject);
begin
if (Edit1.Text<>'')  then
 begin
  adoquery1.Open;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('insert  into  chuangwei(Bedno,Isfree)  values(:Bedno,:Isfree)');
  adoquery1.Parameters.ParamByName('Bedno').Value:=Edit1.Text;
  adoquery1.Parameters.ParamByName('Isfree').Value:=Edit2.Text;
  adoquery1.ExecSQL;

  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('select  *  from  chuangwei');
  adoquery1.Open;

  edit1.Clear;edit2.Clear;
  showmessage('数据已经添加成功！');
 end
else
  if (Edit1.Text='') then
   showmessage('请输入床位编号！');

end;

procedure TForm20.Button3Click(Sender: TObject);
begin
if (Edit3.Text<>'') then
  begin
  adoquery2.Close;
  adoquery2.SQL.Clear;
  adoquery2.SQL.Add('select  *  from  chuangwei where Bedno='''+edit3.Text+'''');
  adoquery2.Open;
  end

else
   showmessage('请输入床位编号！');
end;

procedure TForm20.Button4Click(Sender: TObject);
begin
if (edit3.Text<>'') then
  begin
  adoquery2.Close;
  adoquery2.SQL.Clear;
  adoquery2.SQL.Add('delete   from  chuangwei where Bedno='''+edit3.Text+'''');
  adoquery2.ExecSQL;

  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('select  *  from  chuangwei');
  adoquery1.Open;

  showmessage('数据已经删除成功！');
  end

end;

procedure TForm20.Button5Click(Sender: TObject);
begin
  adoquery2.Post;

  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('select  *  from  chuangwei');
  adoquery1.Open;

  showmessage('数据已经修改成功！');
end;

procedure TForm20.Button6Click(Sender: TObject);
begin
form20.Close;
end;

procedure TForm20.Button2Click(Sender: TObject);
begin
form20.Close;
end;

end.