private void btnDelete_Tapped(object sender, System.Windows.Input.GestureEventArgs e)
        {
            MessageBoxResult result = MessageBox.Show("Bạn có muốn xóa nhà này khỏi bản đồ không?", "Cảnh báo", MessageBoxButton.OKCancel);

            if (result == MessageBoxResult.OK)
            {
                AppManagement._nhadaxoa.Add(item);
                if (item.flagColor == 3)
                {
                    AppManagement._nhadaluu.Remove(AppManagement._nhadaluu.FirstOrDefault(r => r.id == item.id));
                }
                else if (item.flagColor == 2)
                {
                    AppManagement._nhadaxem.Remove(AppManagement._nhadaxem.FirstOrDefault(r => r.id == item.id));
                }
                if (AppManagement._flagHouseSave == false)
                {
                    AppManagement.list.Remove(item);
                    if (AppManagement.flaglist == false)
                    {
                        AppManagement.ListNhaTroInCircle.List_nt_in_circle.Remove(AppManagement.ListNhaTroInCircle.List_nt_in_circle.FirstOrDefault(r => r.id == item.id));
                    }
                    AppManagement._list_marker.Remove(_tooltip);
                    AppManagement._layer.Remove(AppManagement._layer.FirstOrDefault(r => r.Content == _tooltip));
                }
                Controller_Read_Write_NhaTro.WriteNhaXoa();
            }
        }