实体框架5.0奇怪的问题

Question

我有以下数据库：

我已经从这个数据库中创建了EDMX模型。

一切都很顺利，直到我将Diagnosis表添加到图表中。

以下查询开始出错：

var appointments = from a in db.Appointment.Include("Patient")
                   where a.DoctorID == doctorId
                   select a;

我开始收到以下错误：

  

无效的列名称'DiagnosisID'。

在调试模式下，我检查了生成的数据库查询，它是：

SELECT 
  [Extent1].[ID] AS [ID], 
  [Extent1].[DoctorID] AS [DoctorID], 
  [Extent1].[PatientID] AS [PatientID], 
  [Extent1].[DiagnosisID] AS [DiagnosisID], 
  [Extent1].[Date] AS [Date], 
  [Extent1].[Time] AS [Time], 
  [Extent1].[Duration] AS [Duration], 
  [Extent1].[Notes] AS [Notes], 
  [Extent2].[ID] AS [ID1], 
  [Extent2].[ContactDetailID] AS [ContactDetailID], 
  [Extent2].[FirstName] AS [FirstName], 
  [Extent2].[LastName] AS [LastName], 
  [Extent2].[Sex] AS [Sex], 
  [Extent2].[BirthDate] AS [BirthDate], 
  [Extent2].[CurrentDate] AS [CurrentDate], 
  [Extent2].[Notes] AS [Notes1]
FROM  [dbo].[Appointment] AS [Extent1]
LEFT OUTER JOIN [dbo].[Patient] AS [Extent2] ON [Extent1].[PatientID] = [Extent2].[ID]
WHERE (([Extent1].[DoctorID] = @p__linq__0) AND ( NOT ([Extent1].[DoctorID] IS NULL OR @p__linq__0 IS NULL))) OR (([Extent1].[DoctorID] IS NULL) AND (@p__linq__0 IS NULL))

/*
Int32 p__linq__0 = 1
*/

我的设计有什么问题吗？

以下是约会表设计：

以下是约会表的FK定义：

一旦我调用了enumarable对象的 ToList（）方法，就会发生异常，如下所示：

EF生成的类如下：

public partial class Appointment
    {
        public int ID { get; set; }
        public Nullable<int> DoctorID { get; set; }
        public Nullable<int> PatientID { get; set; }
        public Nullable<int> DiagnosisID { get; set; }
        public Nullable<System.DateTime> Date { get; set; }
        public Nullable<System.DateTime> Time { get; set; }
        public Nullable<byte> Duration { get; set; }
        public string Notes { get; set; }

        public virtual Diagnosis Diagnosis { get; set; }
        public virtual Doctor Doctor { get; set; }
        public virtual Patient Patient { get; set; }
    }

public partial class Diagnosis
    {
        public Diagnosis()
        {
            this.Appointment = new HashSet<Appointment>();
        }

        public int ID { get; set; }
        public string Symptoms { get; set; }
        public string Treatment { get; set; }
        public Nullable<System.DateTime> CurrentDate { get; set; }
        public string Notes { get; set; }

        public virtual ICollection<Appointment> Appointment { get; set; }
    }

EDMX生成的类如下：

Answer 1

我刚发现了这个问题。它在连接字符串中！ 我忘记更改连接字符串，因为它指向生产服务器，并且我没有将数据库更改回生产数据库。

谢谢你们的努力。