private void OnTestCommand()
        {
            var  df   = Spots;
            Spot spot = new Spot()
            {
                Color      = Colors.Red,
                Height     = 26.0,
                Id         = 9088127,
                IsSelected = true,
                Price      = 1000,
                RowNum     = "1",
                SeatNum    = "28",
                SectorName = "4 сектор",
                SideName   = "Левая сторона",
                Width      = 26.0,
                X          = 851.0,
                Y          = 445.0
            };

            if (Spots.Contains(spot, new SpotIdComparer()))
            {
                var dfd = Spots.FirstOrDefault(x => x.Id == spot.Id);
                Spots.Remove(dfd);
            }
            else
            {
                Spots.Add(spot);
            }
        }