EF代码优先:如何加载相关数据(父子孙子)？

Question

我有这个实体:

public class DynamicPage {

    public int PageId { get; set; }

    public int Order { get; set; }

    public string MenuText { get; set; }

    public string MenuHover { get; set; }

    public int? ParentId { get; set; }

    public virtual DynamicPage Parent { get; set; }

    public virtual ICollection<DynamicPage> Children { get; set; }
}

该实体可能有3个级别:父级 - >子级 - >孙级.如何加载所有关联子级(级别2)的父级(级别1)以及每个子级,关联孙级(级别3)(如果有)？感谢帮助.

Answer 1

EF 4.1功能和语法:

var entity = context.Parents
    .Include(p => p.Children.Select(c => c.GrandChildren))
    .FirstOrDefault(p => p.Id == 1); // or whatever condition