OOOWriteAndClear/OOO_WriteAndClear/DBModels/OrderProductPartialClass.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace OOO_WriteAndClear.DBModels
{
    public partial class OrderProduct : ICloneable
    {
        public decimal Price => 
            ProductArticleNumberNavigation.CurrentPrice 
            * ProductAmount;

        public decimal PriceWithoutDiscount => 
            ProductArticleNumberNavigation.ProductCost 
            * ProductAmount;

        public object Clone()
        {
            return MemberwiseClone();
        }
    }
}