許多使用MVC 5 MVC 5 EF6

Question

林許多關係和EF 6

有在我的代碼3個表：「信息」，「手機」，「LeadStatus」和結表「LeadPhones」。 我要顯示在索引視圖以下屬性：

Leads.FullName 
LeadStatus.Status 
Phones.PhoneID 

我應該如何配置LeadController？

public partial class Leads 
{ 
    public Leads() 
    { 
     this.LeadPhones = new HashSet<LeadPhones>(); 
    } 

    [Key] 
    public int LeadID { get; set; } 
    public string Title { get; set; } 
    public string FirstName { get; set; } 
    public string LastName { get; set; } 
    public string FullName { get { return NamePrefix + " " + FirstName + " " + LastName; } } 
    public int LeadStatusID { get; set; } 

    public virtual LeadStatus LeadStatus { get; set; } 
    public virtual ICollection<LeadPhones> LeadPhones { get; set; } 
} 

和

public partial class Phones 
{ 
    public Phones() 
    { 
     this.AccountPhones = new HashSet<AccountPhones>(); 
     this.ContactPhones = new HashSet<ContactPhones>(); 
     this.EmployeePhones = new HashSet<EmployeePhones>(); 
     this.LeadPhones = new HashSet<LeadPhones>(); 
    } 

    [Key] 
    public int PhoneID { get; set; }   
    public string PhoneNo { get; set; } 

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

和

public partial class LeadPhones 
{ 
    [Key] 
    public int LeadPhoneID { get; set; } 
    public int LeadID { get; set; } 
    public int PhoneID { get; set; } 

    public virtual Leads Leads { get; set; } 
    public virtual Phones Phones { get; set; } 
} 

和

public partial class LeadStatus 
{ 
    public LeadStatus() 
    { 
     this.Leads = new HashSet<Leads>(); 
    } 

    [Key] 
    public int LeadStatusID { get; set; } 
    public string Status { get; set; } 

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

下不起作用：

public ActionResult Index() 
    {    
     var leads = db.Leads.Include(l => l.LeadStatus).Include(l => l.LeadPhones);      

     return View(leads); 
    } 

主要問題是「PhoneNo」。我怎麼能從交界桌上得到它？

Answer 1

從LeadPhones表中刪除LeadPhoneID列 - 這不是必需的，只會給您帶來問題。刪除類中的所有對LeadPhones的引用。將虛擬財產引向電話（而不是LeadPhones）。 LeadPhones具有潛在客戶的虛擬財產（不是LeadPhones）。

之後你這樣做，那麼你應該能夠：

var leads = db.Leads.Include(l => l.LeadStatus).Include(l => l.Phones); 

public partial class Lead 
{ 
    public Lead() 
    { 
     this.Phones = new HashSet<Phone>(); 
    } 

    [Key] 
    public int LeadID { get; set; } 
    public string Title { get; set; } 
    public string FirstName { get; set; } 
    public string LastName { get; set; } 
    public string FullName { get { return NamePrefix + " " + FirstName + " " + LastName; } } 
    public int LeadStatusID { get; set; } 

    public virtual LeadStatus LeadStatus { get; set; } 
    public virtual ICollection<Phone> Phones { get; set; } 
} 

public partial class Phone 
{ 
    public Phone() 
    { 
     this.AccountPhones = new HashSet<AccountPhones>(); 
     this.ContactPhones = new HashSet<ContactPhones>(); 
     this.EmployeePhones = new HashSet<EmployeePhones>(); 
     this.Leads = new HashSet<Lead>(); 
    } 

    [Key] 
    public int PhoneID { get; set; }   
    public string PhoneNo { get; set; } 

    public virtual ICollection<Lead> Leads { get; set; } 
} 
public partial class LeadStatus 
{ 
    public LeadStatus() 
    { 
     this.Leads = new HashSet<Lead>(); 
    } 

    [Key] 
    public int LeadStatusID { get; set; } 
    public string Status { get; set; } 

    public virtual ICollection<Lead> Leads { get; set; } 
} 

我還糾正了多個您的類。鉛與潛在客戶。該類描述了一個單引線，所以它應該被稱爲引線而不是引線。手機vs電話。