public void Initialize(int?savedSize, double?sizeLimit)
        {
            if (savedSize.HasValue)
            {
                _selectedSize = Sizes.SingleOrDefault(x => x.ID == savedSize.Value);
            }

            if (_selectedSize == null)
            {
                _selectedSize = Sizes.First();
            }

            if (sizeLimit.HasValue)
            {
                _sizeLimit = sizeLimit.Value;
            }
            else
            {
                _sizeLimit = _selectedSize.MaxValue;
            }
        }