我有以下類別:如何在LINQ中包含多個關卡?
public class Problem : AuditableTable
{
public Problem()
{
this.Questions = new List<Question>();
}
public int ProblemId { get; set; }
public string Title { get; set; }
public virtual ICollection<Question> Questions { get; set; }
}
public Question()
{
this.Answers = new List<Answer>();
}
public int QuestionId { get; set; }
public int ProblemId { get; set; }
public virtual ICollection<Answer> Answers { get; set; }
public virtual Problem Problem { get; set; }
}
public class Answer : AuditableTable
{
public int AnswerId { get; set; }
public int QuestionId { get; set; }
public string Text { get; set; }
public virtual Question Question { get; set; }
}
我要發出這樣的詢問:
var problems = _problemsRepository.GetAll()
.Where(p => p.ProblemId == problemId)
.Include(p => p.Questions)
.Include(p => p.Questions.Answers)
.ToList();
return problems;
所以我能看到問題,答問信息。但是,我的最後一個包含有一個問題,我無法弄清楚如何得到答案。
有人可以給我一些建議。
第一個'Include'已經過時了。第二個也將包括這些問題。 – user2674389
@ user2674389更新!感謝評論.. –