private void LogoutExecute()
        {
            LoginView logout = new LoginView();

            view.Close();
            logout.Show();
        }
        public void Logout()
        {
            try
            {
                MessageBoxResult result = MessageBox.Show("Are you sure you want to logout?", "Confirmation", MessageBoxButton.OKCancel);
                switch (result)
                {
                case MessageBoxResult.OK:
                    Login loginView = new Login();
                    Thread.Sleep(1000);
                    wView.Close();
                    loginView.Show();
                    return;

                case MessageBoxResult.Cancel:
                    break;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }