private void btn_back(object sender, RoutedEventArgs e)
 {
     this.Hide();
     home = new Home();
     home.Show();
 }
 private void btnBack_Click(object sender, RoutedEventArgs e)
 {
     Home home = new Home();
     home.Show();
     this.Hide();
 }
 private void OnNavigate()
 {
     this.Close();
     home = new Home();
     home.Show();
 }