unit frm_loginU;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls,frm_mainU,Db,AdoDb,Config, Mask;

type
  Tfrm_login = class(TForm)
    Panel1: TPanel;
    Panel2: TPanel;
    btn_ok: TButton;
    btn_cancel: TButton;
    edt_user: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    edt_pwd: TMaskEdit;
    procedure btn_cancelClick(Sender: TObject);
    procedure btn_okClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    Try_times:integer;//記錄用戶輸入錯誤次數(shù)
  public
  end;

var
  frm_login: Tfrm_login;

implementation
uses DataMU,ClassesU,Control_OperatorU;
{$R *.dfm}

procedure Tfrm_login.btn_cancelClick(Sender: TObject);
begin
Application.Terminate;
end;

procedure Tfrm_login.btn_okClick(Sender: TObject);
var
  operator:TOperator;
  operatorID:integer;
begin
if (edt_user.Text='') then
  begin
    MessageBox(Handle, '用戶名不能為空', '信息', MB_ICONASTERISK);
    exit;
  end;
//啟動數(shù)據(jù)庫連接
if(not DataM.ADOCon.Connected) then
  begin
    DataM.ADOCon.ConnectionString:=TXQWYConfig.getConnectionStr;
    DataM.ADOCon.Open;
  end;
operator:=Toperator.Create;
operator.OperatorName:=edt_user.Text;
operator.pwd:=edt_pwd.Text;
operatorID:=Control_OperatorU.CheckOperator(operator);
if operatorID<>-1 then
    begin

      frm_main.userID:=operatorID;
      frm_main.Show;
      self.Close;
    end
  else
    begin
      MessageBox(Handle, '用戶名和密碼不對', '小區(qū)物業(yè)', MB_ICONEXCLAMATION);
      inc(Try_times);
      if Try_times=3 then
        begin
          MessageBox(Handle, '輸入錯誤超過3次，系統(tǒng)關(guān)閉', '小區(qū)物業(yè)', MB_ICONEXCLAMATION);
          frm_main.Close;
        end;
    end;
end;

procedure Tfrm_login.FormCreate(Sender: TObject);
begin
//初始化記錄用戶輸入錯誤次數(shù)
Try_times:=0;
end;

end.