private void SaveNhaTro_Tapped(object sender, System.Windows.Input.GestureEventArgs e)
        {
            if (item.flagColor == 3)
            {
                item.flagColor = 2;
                if (AppManagement._flagHouseSave == false)
                {
                    itemInlist.flagColor = 2;
                }
                AppManagement._nhadaluu.Remove(AppManagement._nhadaluu.FirstOrDefault(r => r.id == item.id));
                AppManagement._sndl.SoNhaLuu -= 1;
                AppManagement._nhadaxem.Add(item);
            }
            else
            {
                item.flagColor = 3;
                if (AppManagement._flagHouseSave == false)
                {
                    itemInlist.flagColor = 3;
                    _tooltip.PathStar    = item.flagColor.ToString();
                    _tooltip.FillMarker();
                }

                if (AppManagement._nhadaluu == null)
                {
                    AppManagement._nhadaluu = new ObservableCollection <NhaTro>();
                }
                AppManagement._nhadaluu.Add(item);
                AppManagement._sndl.SoNhaLuu += 1;
                if (AppManagement._nhadaxem.FirstOrDefault(r => r.id == item.id) != null)
                {
                    AppManagement._nhadaxem.Remove(AppManagement._nhadaxem.FirstOrDefault(r => r.id == item.id));
                }
            }
            Controller_Read_Write_NhaTro.WriteNhaLuu();
            iconStar.Source = new BitmapImage(new Uri(item.link, UriKind.Relative));
        }