Enable a button in MVVM

Hello Microsoft

I Manege to disable and enable the button on Register, but I want to do the same with Login

VM

[AddINotifyPropertyChangedInterface]
public class LoginViewModel {
public ICommand OpenPopupCommand { get; set; }
public Command Register { get; set; }
public Command Login { get; set; }
public bool DisplayPopUp { get; set; }
public User User { get; set; }
public bool RegisterAllowed { get; set; }
public bool LoginAllowed { get; set; }

    public LoginViewModel() {
        User = new User {
            OnAnyOfMyPropertiesChanged = () => Register.ChangeCanExecute()
        };
        OpenPopupCommand = new Command(() => {
            DisplayPopUp = true;
        });
        Register = new Command(
            execute: () => {
                Debug.WriteLine(User);
            },
            canExecute: () => {
                RegisterAllowed = User != null
                && !string.IsNullOrEmpty(User.Email)
                && !string.IsNullOrEmpty(User.Password)
                && User.Password.Equals(User.ConfirmPassword);
                return RegisterAllowed;
            });
        Login = new Command(
            execute: () => {
                Debug.WriteLine(User);
            },
            canExecute: () => {
                LoginAllowed = User != null
                && !string.IsNullOrEmpty(User.Email)
                && !string.IsNullOrEmpty(User.Password);
                return RegisterAllowed;
            });
    }
}

}