unit_3.pas

某小区物业管理系统源码某小区物业管理系统源码

unit Unit_3;

interface

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

type
  TForm_bb3 = class(TForm)
    ImageList1: TImageList;
    ToolBar1: TToolBar;
    ToolButton1: TToolButton;
    ToolButton2: TToolButton;
    ToolButton3: TToolButton;
    ToolButton4: TToolButton;
    ToolButton5: TToolButton;
    ToolButton6: TToolButton;
    Panel1: TPanel;
    Panel2: TPanel;
    DBGrid1: TDBGrid;
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    procedure ToolButton1Click(Sender: TObject);
    procedure ToolButton2Click(Sender: TObject);
    procedure ToolButton3Click(Sender: TObject);
    procedure ToolButton4Click(Sender: TObject);
    procedure ToolButton5Click(Sender: TObject);
    procedure ToolButton6Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form_bb3: TForm_bb3;

implementation

{$R *.dfm}

procedure TForm_bb3.ToolButton1Click(Sender: TObject);
var i,s:integer;
begin
   with adoquery1 do
begin
sql.Clear;
close;
sql.add('select *  from 物业缴费管理表 where 缴费日期<=:ID ');
parameters[0].Value:=edit1.Text;
open;
end;
i:=0;
while not adoquery1.Eof do
    begin
    i:=strtoint(adoquery1.FieldByName('缴费总额').asstring);
    s:=s+i;
    adoquery1.Next;
    end;

 edit2.Text:=inttostr(s);
end;

procedure TForm_bb3.ToolButton2Click(Sender: TObject);
begin
adoquery1.First;
end;

procedure TForm_bb3.ToolButton3Click(Sender: TObject);
begin
adoquery1.Prior;
end;

procedure TForm_bb3.ToolButton4Click(Sender: TObject);
begin
adoquery1.Next;
end;

procedure TForm_bb3.ToolButton5Click(Sender: TObject);
begin
adoquery1.Last;
end;

procedure TForm_bb3.ToolButton6Click(Sender: TObject);
begin
close;
end;

end.