public Taikhoan_ViewModel()
        {
            List = new ObservableCollection <Model.TAIKHOAN>(Model.DataProvider.Ins.DB.TAIKHOANs.Where(x => x.IsDeleted == false).ToList().OrderBy(x => x.NHANVIEN.ma_quyen));

            TaoDSNhanvien();
            DeleteList = new ObservableCollection <Model.TAIKHOAN>();

            Active = false;
            IsOpen = false;

            Active_Command = new RelayCommand <object>(p =>
            {
                if (Active == false)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                Active = false;
            });

            CloseDialog_Command = new RelayCommand <object>(p =>
            {
                return(true);
            }, p =>
            {
                IsOpen = false;
            });

            #region Trang quan tri he thong

            #region Load trang quan tri

            Load_Command = new RelayCommand <object>(p =>
            {
                return(true);
            }, p =>
            {
                List = new ObservableCollection <Model.TAIKHOAN>(Model.DataProvider.Ins.DB.TAIKHOANs.Where(x => x.IsDeleted == false).ToList().OrderBy(x => x.NHANVIEN.ma_quyen));

                TaoDSNhanvien();
                DeleteList = new ObservableCollection <Model.TAIKHOAN>();
            });

            #endregion

            #region Them tai khoan

            GetPassword_Command = new RelayCommand <PasswordBox>(p =>
            {
                if (p.Password.Length < 5)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                Matkhautaikhoan = p.Password;
            });


            GetRePassword_Command = new RelayCommand <PasswordBox>(p =>
            {
                if (p.Password.Length < 5)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                Matkhauxacnhan = p.Password;
            });



            Insert_Command = new RelayCommand <object>(p =>
            {
                if (string.IsNullOrEmpty(Tentaikhoan) || string.IsNullOrEmpty(Emailkhoiphuc) || string.IsNullOrEmpty(Matkhautaikhoan) || string.IsNullOrEmpty(Matkhauxacnhan))
                {
                    return(false);
                }

                if (SNhanvien == null)
                {
                    return(false);
                }

                if (MyStaticMethods.CheckEmail(Emailkhoiphuc) == false)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                if (Matkhauxacnhan == Matkhautaikhoan)
                {
                    if (!Kiemtratendangnhap(Tentaikhoan))
                    {
                        Model.TAIKHOAN newItem = new Model.TAIKHOAN()
                        {
                            ma_taikhoan  = MyStaticMethods.RandomInt(10),
                            ten_taikhoan = Tentaikhoan,
                            email        = Emailkhoiphuc,
                            matkhau      = MyStaticMethods.MD5Hash(MyStaticMethods.Base64Encode(Matkhautaikhoan)),
                            NHANVIEN     = SNhanvien,
                            IsDeleted    = false,
                            IsLogin      = false
                        };

                        Model.DataProvider.Ins.DB.TAIKHOANs.Add(newItem);
                        Model.DataProvider.Ins.DB.SaveChanges();

                        List.Insert(0, newItem);
                        TaoDSNhanvien();
                        SelectedItem = newItem;

                        Active  = true;
                        Message = "Thêm mới thành công !!!";
                    }
                    else
                    {
                        Active  = true;
                        Message = "Tên đăng nhập đã tồn tại !!!";
                    }
                }
                else
                {
                    Active  = true;
                    Message = "Mật khẩu và xác nhận mật khẩu không trùng khớp !!!";
                }
            });
            #endregion

            #region Tao moi
            Reset_Command = new RelayCommand <object>(p =>
            {
                return(true);
            }, p =>
            {
                Tentaikhoan     = "";
                Matkhautaikhoan = "";
                Matkhauxacnhan  = "";
                Emailkhoiphuc   = "";
                SNhanvien       = null;

                SelectedItem = null;
            });
            #endregion

            #region Xoa tai khoan

            DeleteShow_Command = new RelayCommand <object>(p =>
            {
                if (DeleteList.Count() == 0)
                {
                    return(false);
                }

                if (IsOpen == true)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                IsOpen  = true;
                Content = "  Xóa vĩnh viễn các bản ghi được chọn ???";
            });

            AddDeleteList_Command = new RelayCommand <CheckBox>(p =>
            {
                return(true);
            }, p =>
            {
                DeleteList.Add(List.Where(x => x.ma_taikhoan == p.Uid.ToString()).SingleOrDefault());
            });

            RemoveDeleteList_Command = new RelayCommand <CheckBox>(p =>
            {
                return(true);
            }, p =>
            {
                DeleteList.Remove(List.Where(x => x.ma_taikhoan == p.Uid.ToString()).SingleOrDefault());
            });

            Delete_Command = new RelayCommand <object>(p =>
            {
                if (DeleteList.Count() == 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                RemoveIteminDb();
                RemoveIteminList();

                DeleteList = new ObservableCollection <Model.TAIKHOAN>();

                Tentaikhoan     = "";
                Matkhautaikhoan = "";
                Emailkhoiphuc   = "";
                SNhanvien       = null;

                TaoDSNhanvien();
                IsOpen = false;
            });
            #endregion

            #endregion

            #region Trang dang nhap

            #region Dang nhap

            LoadDangnhap_Command = new RelayCommand <Window>(p =>
            {
                return(true);
            }, p =>
            {
                Matkhau = string.Empty;
                CheckRemember(p);
            });

            getCurrentPass_Command = new RelayCommand <PasswordBox>(p =>
            {
                return(true);
            }, p =>
            {
                Matkhau = p.Password;
            });

            Login_Command = new RelayCommand <Button>(p =>
            {
                if (string.IsNullOrEmpty(Matkhau) || string.IsNullOrEmpty(Tendangnhap))
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                if (Kiemtrataikhoan(Tendangnhap, Matkhau))
                {
                    string mk        = MyStaticMethods.MD5Hash(MyStaticMethods.Base64Encode(Matkhau));
                    var current_user = Model.DataProvider.Ins.DB.TAIKHOANs.Where(x => x.ten_taikhoan == Tendangnhap && x.matkhau == mk).SingleOrDefault();
                    if (current_user.NHANVIEN.ma_quyen == 1)
                    {
                        View.View_Quanly.Manhinhchinh view = new View.View_Quanly.Manhinhchinh();
                        view.Show();

                        //MessageBox.Show("Đăng nhập thành công", "THÔNG BÁO");
                    }
                    else
                    {
                        View.View_Thukho.Manhinhchinh view = new View.View_Thukho.Manhinhchinh();
                        view.Show();

                        //MessageBox.Show("Đăng nhập thành công", "THÔNG BÁO");
                    }

                    CurrentUser = current_user;
                    IsRemember();

                    Window w = getWindowParent(p) as Window;
                    if (p != null)
                    {
                        w.Close();
                    }

                    Chuyentrangthai_Mo(CurrentUser);
                }
                else
                {
                    Active  = true;
                    Message = "Vui lòng kiểm tra lại tên đăng nhập và mật khẩu !!!";
                }
            });

            #endregion

            #region Khoi phuc

            Send_Command = new RelayCommand <Button>(p =>
            {
                return(true);
            }, p =>
            {
                if (!string.IsNullOrEmpty(Tendangnhap))
                {
                    var result = Model.DataProvider.Ins.DB.TAIKHOANs.Where(x => x.ten_taikhoan == Tendangnhap).Count();
                    if (result != 0)
                    {
                        Model.TAIKHOAN TK = Model.DataProvider.Ins.DB.TAIKHOANs.Where(x => x.ten_taikhoan == Tendangnhap).SingleOrDefault();
                        try
                        {
                            Makhoiphuc = GuiMail(TK);

                            Khoiphuctk view = new Khoiphuctk();
                            view.Show();

                            Window w = getWindowParent(p) as Window;
                            if (w != null)
                            {
                                w.Close();
                            }

                            Active  = true;
                            Message = "Đã gửi mã xác thực !!! Vui lòng kiểm tra email ";
                        }
                        catch (Exception)
                        {
                            Active  = true;
                            Message = "Không thể gửi mã !!! ";
                        }
                    }
                    else
                    {
                        Active  = true;
                        Message = "Tên đăng nhập không tồn tại !!!";
                    }
                }

                else
                {
                    Active  = true;
                    Message = "Vui lòng điền tên đăng nhập !!!";
                }
            });

            Check_Command = new RelayCommand <Button>(p =>
            {
                if (string.IsNullOrEmpty(Tendangnhap) || string.IsNullOrEmpty(Maxacthuc))
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                Model.TAIKHOAN TK = Model.DataProvider.Ins.DB.TAIKHOANs.Where(x => x.ten_taikhoan == Tendangnhap).SingleOrDefault();

                if (Maxacthuc == Makhoiphuc)
                {
                    if (TK.NHANVIEN.ma_quyen == 1)
                    {
                        View.View_Quanly.Manhinhchinh view = new View.View_Quanly.Manhinhchinh();
                        view.Show();

                        //MessageBox.Show("Đăng nhập thành công", "THÔNG BÁO");
                    }
                    else
                    {
                        View.View_Thukho.Manhinhchinh view = new View.View_Thukho.Manhinhchinh();
                        view.Show();

                        //MessageBox.Show("Đăng nhập thành công", "THÔNG BÁO");
                    }

                    CurrentUser = TK;
                    Makhoiphuc  = "";
                    Maxacthuc   = "";

                    Window w = getWindowParent(p) as Window;
                    if (w != null)
                    {
                        w.Close();
                    }

                    Chuyentrangthai_Mo(CurrentUser);
                }
                else
                {
                    Active  = true;
                    Message = "Mã xác thực sai";
                }
            });
            #endregion

            #endregion

            #region Thay doi thong tin

            getNewCurrentPass_Command = new RelayCommand <PasswordBox>(p =>
            {
                if (p.Password.Length < 5)
                {
                    return(false);
                }

                if (string.IsNullOrEmpty(p.Password))
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                Matkhaumoi = p.Password;
            });

            getNewCurrentRePass_Command = new RelayCommand <PasswordBox>(p =>
            {
                if (p.Password.Length < 5)
                {
                    return(false);
                }

                if (string.IsNullOrEmpty(p.Password))
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                XacnhanMatkhaumoi = p.Password;
            });

            Update_Command = new RelayCommand <Button>(p =>
            {
                if (string.IsNullOrEmpty(Tentkmoi) || string.IsNullOrEmpty(CurrentUser.email) || string.IsNullOrEmpty(CurrentUser.NHANVIEN.ten_nhanvien))
                {
                    return(false);
                }

                if (!MyStaticMethods.CheckEmail(CurrentUser.email))
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                if (!Kiemtratendangnhap(Tentkmoi))
                {
                    if (!string.IsNullOrEmpty(Matkhaumoi) && !string.IsNullOrEmpty(XacnhanMatkhaumoi))
                    {
                        if (Matkhaumoi == XacnhanMatkhaumoi)
                        {
                            CurrentUser.matkhau = MyStaticMethods.MD5Hash(MyStaticMethods.Base64Encode(Matkhaumoi));
                        }
                    }

                    CurrentUser.ten_taikhoan = Tentkmoi;
                    Model.DataProvider.Ins.DB.SaveChanges();

                    Active  = true;
                    Message = "Đã cập nhật thông tin !!!";
                }
                else
                {
                    if (!string.IsNullOrEmpty(Matkhaumoi) && !string.IsNullOrEmpty(XacnhanMatkhaumoi))
                    {
                        if (Matkhaumoi == XacnhanMatkhaumoi)
                        {
                            CurrentUser.matkhau = MyStaticMethods.MD5Hash(MyStaticMethods.Base64Encode(Matkhaumoi));
                        }
                    }

                    Model.DataProvider.Ins.DB.SaveChanges();

                    Active  = true;
                    Message = "Đã cập nhật thông tin !!! Không sửa tên đăng nhập";
                }
            });

            Back_Command = new RelayCommand <Button>(p =>
            {
                return(true);
            }, p =>
            {
                Window w = getWindowParent(p) as Window;
                if (w != null)
                {
                    CurrentUser = Model.DataProvider.Ins.DB.TAIKHOANs.Where(x => x.ma_taikhoan == CurrentUser.ma_taikhoan).SingleOrDefault();
                    w.Close();
                }
            });

            #endregion

            #region Phan tinh trang

            Status_Command = new RelayCommand <object>(p =>
            {
                return(true);
            }, p =>
            {
                View.View_Quanly.Tinhtrang_nguoidung view = new View.View_Quanly.Tinhtrang_nguoidung();
                view.WindowStartupLocation = WindowStartupLocation.CenterScreen;
                view.ShowDialog();
            });

            Refesh_State_Command = new RelayCommand <object>(p =>
            {
                return(true);
            }, p =>
            {
                Capnhattrangthai();
            });

            #endregion

            #region Phan sap xep

            OrderbyTennhanvien_Command = new RelayCommand <object>(p =>
            {
                if (List.Count() == 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                if (p == null)
                {
                    ObservableCollection <Model.TAIKHOAN> chkList = new ObservableCollection <Model.TAIKHOAN>(List.OrderByDescending(x => x.NHANVIEN.ten_nhanvien));

                    if (List[0] == chkList[0])
                    {
                        List = new ObservableCollection <Model.TAIKHOAN>(List.OrderBy(x => x.NHANVIEN.ten_nhanvien));
                    }
                    else
                    {
                        List = new ObservableCollection <Model.TAIKHOAN>(chkList);
                    }
                }
                else if (p != null)
                {
                    ObservableCollection <Model.TAIKHOAN> chkList = new ObservableCollection <Model.TAIKHOAN>(List_Tinhtrang.OrderByDescending(x => x.NHANVIEN.ten_nhanvien));

                    if (List_Tinhtrang[0] == chkList[0])
                    {
                        List_Tinhtrang = new ObservableCollection <Model.TAIKHOAN>(List_Tinhtrang.OrderBy(x => x.NHANVIEN.ten_nhanvien));
                    }
                    else
                    {
                        List_Tinhtrang = new ObservableCollection <Model.TAIKHOAN>(chkList);
                    }
                }
            });

            OrderbyTentaikhoan_Command = new RelayCommand <object>(p =>
            {
                if (List.Count() == 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                if (p == null)
                {
                    ObservableCollection <Model.TAIKHOAN> chkList = new ObservableCollection <Model.TAIKHOAN>(List.OrderByDescending(x => x.ten_taikhoan));

                    if (List[0] == chkList[0])
                    {
                        List = new ObservableCollection <Model.TAIKHOAN>(List.OrderBy(x => x.ten_taikhoan));
                    }
                    else
                    {
                        List = new ObservableCollection <Model.TAIKHOAN>(chkList);
                    }
                }
                else if (p != null)
                {
                    ObservableCollection <Model.TAIKHOAN> chkList = new ObservableCollection <Model.TAIKHOAN>(List_Tinhtrang.OrderByDescending(x => x.ten_taikhoan));

                    if (List_Tinhtrang[0] == chkList[0])
                    {
                        List_Tinhtrang = new ObservableCollection <Model.TAIKHOAN>(List_Tinhtrang.OrderBy(x => x.ten_taikhoan));
                    }
                    else
                    {
                        List_Tinhtrang = new ObservableCollection <Model.TAIKHOAN>(chkList);
                    }
                }
            });

            OrderbyTinhtrang_Command = new RelayCommand <object>(p =>
            {
                if (List_Tinhtrang.Count() == 0)
                {
                    return(false);
                }

                return(true);
            }, p =>
            {
                ObservableCollection <Model.TAIKHOAN> chkList = new ObservableCollection <Model.TAIKHOAN>(List_Tinhtrang.OrderByDescending(x => x.IsLogin));

                if (List_Tinhtrang[0] == chkList[0])
                {
                    List_Tinhtrang = new ObservableCollection <Model.TAIKHOAN>(List.OrderBy(x => x.IsLogin));
                }
                else
                {
                    List_Tinhtrang = new ObservableCollection <Model.TAIKHOAN>(chkList);
                }
            });

            #endregion
        }
        public LowControlBar_ViewModel()
        {
            ToMain_Command = new RelayCommand <UserControl>(p =>
            {
                return(true);
            }, p =>
            {
                Window windowparent = getParent(p) as Window;

                if (p.Uid.ToString() == "QL")
                {
                    View.View_Quanly.Manhinhchinh view = new View.View_Quanly.Manhinhchinh();
                    view.WindowState           = windowparent.WindowState;
                    view.WindowStartupLocation = WindowStartupLocation.CenterScreen;

                    view.Show();
                }
                else if (p.Uid.ToString() == "TK")
                {
                    View.View_Thukho.Manhinhchinh view = new View.View_Thukho.Manhinhchinh();
                    view.WindowState           = windowparent.WindowState;
                    view.WindowStartupLocation = WindowStartupLocation.CenterScreen;

                    view.Show();
                }

                windowparent.Close();
            });

            Account_Command = new RelayCommand <UserControl>(p =>
            {
                return(true);
            }, p =>
            {
                if (p.Uid.ToString() == "QL")
                {
                    View.View_Quanly.Thongtin_taikhoan view = new View.View_Quanly.Thongtin_taikhoan();
                    view.ShowDialog();
                }
                else if (p.Uid.ToString() == "TK")
                {
                    View.View_Thukho.Thongtin_taikhoan view = new View.View_Thukho.Thongtin_taikhoan();
                    view.ShowDialog();
                }
            });

            Logout_Command = new RelayCommand <UserControl>(p =>
            {
                return(true);
            }, p =>
            {
                if (ViewModel.Taikhoan_ViewModel.Glo_CurrentUser != null)
                {
                    ViewModel.Taikhoan_ViewModel.Chuyentrangthai_Dong(ViewModel.Taikhoan_ViewModel.Glo_CurrentUser);
                }

                Dangnhap dangnhap = new Dangnhap();
                dangnhap.Show();

                Window windowparent = getParent(p) as Window;
                if (windowparent != null)
                {
                    windowparent.Close();
                }
            });
        }