嵌套其中的查询在实体框架

Question

我有这样

public class Survey 
    { 
     public Survey() 
     { 
      SurveyResponses=new List<SurveyResponse>(); 
     } 

     public Guid SurveyId { get; set; } 

     public string SurveyName { get; set; } 

     public string SurveyDescription { get; set; } 

     public virtual ICollection<Question> Questions { get; set; } 

     public virtual ICollection<SurveyResponse> SurveyResponses { get; set; } 
    } 

类和问题类这样

public class Question 
    { 

     public Guid QuestionId { get; set; } 

     public string QuestionText { get; set; } 

     public QuestionType QuestionType { get; set; } 

     public virtual ICollection<Option> Options { get; set; } 

     public bool IsOtherAllowed { get; set; } 

     public virtual ICollection<Answer> Answers { get; set; } 

    } 

我想编写一个查询来选择包含一个特定问题的调查

东西沿着这些线路

Survey s1 = db.Surveys.Where(s => s.Questions.Where(q => q.QuestionId == "1eb56610-853d-4a9e-adc7-e0ec069390b7")); 

Answer 1

Survey s1 = db.Surveys 
    .Where(s => s.Questions.Any(q => q.QuestionId == "1eb56610-853d-4a9e-adc7-e0ec069390b7")) 
    .FirstOrDefault();