public partial class XemVeDat : UserControl
    {
        public static MainWindow mainWindow;
        public string MaNguoiDung;
        public int STT = 0;
        public XemVeDat(MenuHome parent, string _maNguoiDung)
        {
            //mainWindow = windows;
            MaNguoiDung = _maNguoiDung;
            InitializeComponent();
            var ls = new VeXemPhimBUS().layVeDat(_maNguoiDung);
            string ghe = "";

            if(ls.Count > 0)
            {
                Model.Models.VeXemPhim v = ls.First();
                txtGhe.Text = v.Ghe.DayGhe + v.Ghe.SoTT;
                this.DataContext = v;
            }
            if(ls.Count <= 1)
            {
                Next.Visibility = Visibility.Hidden;
            }

            Pre.Visibility = Visibility.Hidden;
        }

        private void btnNext_Click(object sender, RoutedEventArgs e)
        {
            STT = STT + 1;
            Pre.Visibility = Visibility.Visible;
            var ls = new VeXemPhimBUS().layVeDat(MaNguoiDung);
            string ghe = "";

            Model.Models.VeXemPhim v = ls[STT];
            txtGhe.Text = v.Ghe.DayGhe + v.Ghe.SoTT;
            this.DataContext = v;
            if(STT == ls.Count - 1)
            {
                Next.Visibility = Visibility.Hidden;
            }
        }

        private void btnPrev_Click(object sender, RoutedEventArgs e)
        {
            STT = STT - 1;
            Next.Visibility = Visibility.Visible;
            var ls = new VeXemPhimBUS().layVeDat(MaNguoiDung);
            string ghe = "";

            Model.Models.VeXemPhim v = ls[STT];
            txtGhe.Text = v.Ghe.DayGhe + v.Ghe.SoTT;
            this.DataContext = v;
            if (STT == 0)
            {
                Pre.Visibility = Visibility.Hidden;
            }
        }
    }