AmaroK86.ImageFormat.ImageSize.CompareTo C# (CSharp) Метод

        public int CompareTo(object obj)
        {
            if (obj is ImageSize)
            {
                ImageSize temp = (ImageSize)obj;
                if ((temp.width * temp.height) == (this.width * this.height))
                    return 0;
                if ((temp.width * temp.height) > (this.width * this.height))
                    return -1;
                else
                    return 1;
            }
            throw new ArgumentException();
        }