private async void OnLogin(System.Windows.Controls.PasswordBox password)
        {
            await sunnyPortal.Connect(UserName, password.Password);

            if (sunnyPortal.IsConnected)
            {
                Messenger.Default.Send <Messages>(Messages.IsLoggedIn);
            }
            else
            {
                Messenger.Default.Send <OpenWindowMessage>(
                    new OpenWindowMessage
                {
                    IsModal      = true,
                    WindowToOpen = WindowsToOpen.MessageBox,
                    Caption      = "Login",
                    Text         = "Invalid login or password"
                });
            }
        }