public GridConcerts(int Id, string Name, string Genre, string Description, byte[] Photo, string a = null)
        {
            InitializeComponent();
            this.a = a;
            ConcertName.Content = Name;
            this.Genre.Content  = Genre;
            if (File.Exists(Description))
            {
                ActorsAndDescriptions.Text = File.ReadAllText(Description);
            }
            else
            {
                ActorsAndDescriptions.Text = "Missing description file";
            }
            BitmapImage image = new BitmapImage();

            image.BeginInit();
            image.StreamSource = new MemoryStream(Photo);
            image.EndInit();

            FilmImage.Source = image;
            get.GetAllConcertHallsByIdConcert(Id, User.Date, NameC, AddressC, PhotoC, PriceC, FreeSpaces, ReservedSpaces, IdC);
        }