qxbweihu.pas

这是一个小区物业管理系统

unit qxbweihu;

interface

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

type
  Tfrmqxbweihu = class(TForm)
    Panel1: TPanel;
    Label1: TLabel;
    Bevel1: TBevel;
    ToolBar1: TToolBar;
    ToolButton1: TToolButton;
    ToolButton2: TToolButton;
    ToolButton3: TToolButton;
    ToolButton4: TToolButton;
    ToolButton5: TToolButton;
    ImageList1: TImageList;
    Bevel2: TBevel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    Label6: TLabel;
    Bevel3: TBevel;
    DBGrid1: TDBGrid;
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    procedure ToolButton5Click(Sender: TObject);
    procedure ToolButton4Click(Sender: TObject);
    procedure ToolButton1Click(Sender: TObject);
    procedure ToolButton3Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmqxbweihu: Tfrmqxbweihu;

implementation

{$R *.dfm}

procedure Tfrmqxbweihu.ToolButton5Click(Sender: TObject);
begin
close;
end;

procedure Tfrmqxbweihu.ToolButton4Click(Sender: TObject);
begin
ADOQuery1.Close;
ADOQuery1.SQL.Clear;
ADOQuery1.SQL.Add('select * from denglu');
ADOQuery1.Open;
end;

procedure Tfrmqxbweihu.ToolButton1Click(Sender: TObject);
begin
if (edit1.Text='') or (edit2.Text='') or (edit3.Text='') then
  showmessage('请输入完整信息')
else
 begin
  ADOQuery1.Close;
  ADOQuery1.SQL.Clear;
  ADOQuery1.SQL.Add('insert into denglu values(:a,:b,:c)');
  ADOQuery1.Parameters.ParamByName('a').Value:=edit1.Text;
  ADOQuery1.Parameters.ParamByName('b').Value:=edit2.Text;
  ADOQuery1.Parameters.ParamByName('c').Value:=edit3.Text;
  ADOQuery1.ExecSQL;
  showmessage('添加成功');
 end;
end;

procedure Tfrmqxbweihu.ToolButton3Click(Sender: TObject);
begin
if edit1.Text='' then
  begin
    showmessage('输入要删除的用户名');
    edit1.SetFocus;
  end
else
  begin
    ADOQuery1.Close;
    ADOQuery1.SQL.Clear;
    ADOQuery1.SQL.Add('delete from denglu where user_name='+''''+edit1.Text+'''');
    ADOQuery1.ExecSQL;
    showmessage('删除成功');
  end;
end;

procedure Tfrmqxbweihu.FormCreate(Sender: TObject);
begin
 edit1.Clear;
 edit2.Clear;
 edit3.Clear;
end;

end.