实体框架包含许多嵌套子代

Question

假设我有实体

Person
------
List<Person> Children
List<Item> FaveBooks
List<Item> FaveSweets

如果我想为一个人加载儿童，这很好。

dataContext.People.Where(x => x.id == personId)
      .Include(x.Children).First()

如果我还想要包含儿童FaveBooks，那么简单

dataContext.People.Where(x => x.id == personId)
      .Include(x.Children.Select(c => c.FaveBooks)).First()

如何包含儿童的FaveSweets？

dataContext.People.Where(x => x.id == personId)
      .Include(x.Children.Select(c => new { c.FaveBooks, c.FaveSweets })).First()

上述内容不起作用，因为我得到The Include path expression must refer to a navigation property defined on the type.

Answer 1

尝试这样的事情。

   dataContext.People.Where(x => x.id == personId).Include(x => x.Children.Select(c => c.FaveBooks)).Include(x => x.Children.Select(c => c.FaveSweets)).First();