login.pas

实用的毛织生产管理系统

unit login;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls, constb, DB, DBTables, jpeg;

type
  Tloginfm = class(TForm)
    Panel1: TPanel;
    Label1: TLabel;
    Panel2: TPanel;
    Label2: TLabel;
    Label3: TLabel;
    Image1: TImage;
    Label4: TLabel;
    Label5: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Shape1: TShape;
    Button1: TButton;
    Button2: TButton;
    Label6: TLabel;
    Edit3: TEdit;
    loginqy: TQuery;
    procedure FormCreate(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormDestroy(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormKeyPress(Sender: TObject; var Key: Char);
    procedure Edit1Exit(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  loginfm: Tloginfm;

implementation

{$R *.dfm}

procedure Tloginfm.FormCreate(Sender: TObject);
begin
  label1.Caption := company + '生产管理系统';
end;

procedure Tloginfm.Button2Click(Sender: TObject);
begin
  loginflg := false;
  close;
end;

procedure Tloginfm.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  action := cafree;
end;

procedure Tloginfm.FormDestroy(Sender: TObject);
begin
  loginfm := nil;
end;

procedure Tloginfm.Button1Click(Sender: TObject);
begin
//showmessage(editpass(loginpass));
  if (loginpass = editpass(edit2.Text))and (edit3.Text<>'') then
  begin
       loginflg := true;
      close;
  end
  else
    messagedlg('操作员或密码错误!', mtinformation, [mbok], 0);

end;

procedure Tloginfm.FormKeyPress(Sender: TObject; var Key: Char);
begin
  if key = #13 then
  begin
    key := #0;
    perform(WM_nextdlgctl, 0, 0);
  end;

end;

procedure Tloginfm.Edit1Exit(Sender: TObject);
begin
  if activecontrol <> button2 then
  begin
    loginqy.sql.Clear;
    loginqy.sql.add('select * from dbo.logins where loginid =:mlogin ');
    loginqy.parambyname('mlogin').asstring := edit1.text;
    loginqy.Open;
    if loginqy.recordcount <= 0 then
    begin
      messagedlg('操作员代码错误，请重新输入!', mtinformation, [mbok], 0);
      edit1.setfocus;
      edit2.Text := '';
      edit3.Text := '';
      loginpass := '';
      logincd := '';
      loginrole := '';
      loginnm := '';
    end
    else
    begin
      logincd := loginqy.fieldbyname('loginid').AsString;
      loginpass := loginqy.fieldbyname('loginpas').AsString;
      loginnm := loginqy.fieldbyname('loginname').AsString;
      loginrole := loginqy.fieldbyname('role').AsString;
      edit3.Text := loginnm;
    end;
  end;
  loginqy.Close;

end;

end.