我是Entity Framework的新手,并试图了解如何在ASP.Net MVC 4应用程序中执行此操作。
我有一个Appointment对象,其中包含一个Customer对象(客户信息)和一个约会的DateTime。我似乎无法弄清楚如何正确存储客户对象。
看看我现在正在做的事情我想我应该存储客户ID,但我不知道如何在以后检索客户信息(我是否使用模型?另一个Domain类“AppointmentDetails”?应该我使用服务层对象?)
public class Appointment
{
public int Id { get; set; }
public Customer Customer { get; set; }
public DateTime AppointmentDateTime { get; set; }
public Appointment()
{
}
public Appointment(Customer customer, DateTime appointmentDateTime)
{
Customer = customer;
AppointmentDateTime = appointmentDateTime;
}
}
Customer.cs
public class Customer
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string Province { get; set; }
public string Phone { get; set; }
public string Email { get; set; }
public Customer()
{
}
public Customer(string firstName, string lastName, string address, string city, string province, string phone, string email)
{
FirstName = firstName;
LastName = lastName;
Address = address;
City = city;
Province = province;
Phone = phone;
Email = email;
}
}
答案 0 :(得分:0)
到目前为止,我一直使用Entity Framework遵循数据库第一种方法,但我相信你的类应该存储这样的东西:
public virtual ICollection<Appointment> Appointment{ get; set; } // which will be used to access your Customer's appointments.
在您的Customer课程中,在您的Appointment课程中,您将拥有:
public int CustomerId { get; set; }
public virtual Customer Customer { get; set; }
你是如何创建这些课程的?如果使用模型设计器,它将生成连接类的必要属性。