在 LINQ to Entities 查询中无法构造实体或复杂类型

private static void Main(string[] args)
        {
            Boolean s = false;
            using(Northwind dbo = new Northwind())
            {
                IQueryable<Customers> query;
                if(s)
                {
                    // 错误的写法,会出现 “在 LINQ to Entities 查询中无法构造实体或复杂类型”错误
                    query = from a in dbo.Customers
                            select new Customers()
                            {
                                                            ID=a.ID,
                                Address = a.Address
                            };
                }
                else
                {
                    // 解决方法,从原有类型中继承一个子类
                    query = from a in dbo.Customers
                            select new CustomerChild()
                            {
                                                            ID=a.ID,
                                Address = a.Address
                            };
                }
                var c = query.ToList();
                Console.WriteLine(c.Count);
                Console.Read();
            }
        }
        private class CustomerChild : Customers { }

在 LINQ to Entities 查询中无法构造实体或复杂类型

原文：https://blog.51cto.com/twoxzi/2443954