Components

class Component
    {
        string name;
        decimal price;
        string details;

        public Component(string name, decimal price, string details = null) : this(name, price)
        {
            this.Details = details;
        }

        public Component(string name, decimal price)
        {
            this.Name = name;
            this.Price = price;
        }

        public string Name
        {
            get
            {
                return this.name;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    throw new ArgumentNullException("Component name cannot be empty");
                }
                this.name = value;
            }
        }
        public decimal Price
        {
            get
            {
                return this.price;
            }
            set
            {
                if (value <= 0)
                {
                    throw new ArgumentOutOfRangeException("Component price must be a positive number");
                }
                this.price = value;
            }
        }
        public string Details{ get; set; }
    }
}