列表在MVC一對多關係和實體框架

我有絲束模型 personnes和diplomes列表在MVC一對多關係和實體框架

public class personne 
{ 
    public int Id { get; set; } 
    public string name { get; set; } 
    public virtual List<diplome> diplomes { get; set; } 
} 

public class diplome 
{ 
    public int Id { get; set; } 
    public string titre { get; set; } 
    public string description { get; set; } 

    public int personneId { get; set; } 
    public virtual personne personne { get; set; } 
}

但I'can't顯示列表關閉diplomes在ditails在視圖中查看

public ActionResult Details(int? id) 
    { 
     if (id == null) 
     { 
      return new HttpStatusCodeResult(HttpStatusCode.BadRequest); 
     } 
     personne personne = db.personnes.Find(id); 
     personne.diplomes = db.diplomes.Where(d => d.personneId == id).ToList(); 

     return View(personne); 
    }

沒有查看在diplomes.titre

@foreach (var dep in model.diplomes)//error 
    { 
     <dd> 
      @Html.DisplayFor(dep.titre) 
     </dd>

}

來源

2016-10-02 Bou Rif Abdou

下面是DDL：

USE [Breaz] 
GO 
/****** Object: Table [dbo].[diplome] Script Date: 10/6/2016 1:33:31 PM ******/ 
SET ANSI_NULLS ON 
GO 
SET QUOTED_IDENTIFIER ON 
GO 
SET ANSI_PADDING ON 
GO 
CREATE TABLE [dbo].[diplome](
    [Id] [int] IDENTITY(1,1) NOT NULL, 
    [titre] [varchar](10) NULL, 
    [description] [varchar](10) NULL, 
    [personneId] [int] NULL, 
CONSTRAINT [PK_diplome] PRIMARY KEY CLUSTERED 
(
    [Id] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 

GO 
SET ANSI_PADDING OFF 
GO 
/****** Object: Table [dbo].[personne] Script Date: 10/6/2016 1:33:31 PM ******/ 
SET ANSI_NULLS ON 
GO 
SET QUOTED_IDENTIFIER ON 
GO 
SET ANSI_PADDING ON 
GO 
CREATE TABLE [dbo].[personne](
    [Id] [int] IDENTITY(1,1) NOT NULL, 
    [name] [varchar](10) NULL, 
CONSTRAINT [PK_personne] PRIMARY KEY CLUSTERED 
(
    [Id] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] 
) ON [PRIMARY] 

GO 
SET ANSI_PADDING OFF 
GO 
ALTER TABLE [dbo].[diplome] WITH CHECK ADD CONSTRAINT [FK_diplome_personne] FOREIGN KEY([personneId]) 
REFERENCES [dbo].[personne] ([Id]) 
GO 
ALTER TABLE [dbo].[diplome] CHECK CONSTRAINT [FK_diplome_personne] 
GO

然後可以使用實體框架（EDMX）ADO.NET實體數據模型。這將生成的表，因爲你指定：

public partial class personne 
{ 
    public personne() 
    { 
     this.diplomes = new HashSet<diplome>(); 
    } 

    public int Id { get; set; } 
    public string name { get; set; } 

    public virtual ICollection<diplome> diplomes { get; set; } 
} 

    public partial class diplome 
{ 
    public int Id { get; set; } 
    public string titre { get; set; } 
    public string description { get; set; } 
    public Nullable<int> personneId { get; set; } 

    public virtual personne personne { get; set; } 
}

這裏是控制器方法：

public ActionResult Index2() 
    { 
     BreazEntities entity = new BreazEntities(); 
     var perso = entity.personnes.ToList(); 

     return View(perso); 
    }

這裏是視圖：

@{ 
    Layout = null; 
} 

<!DOCTYPE html> 
@model IEnumerable<Testy20161006.personne> 
<html> 
<head> 
    <meta name="viewport" content="width=device-width" /> 
    <title>Index2</title> 
</head> 
<body> 
    <div> 
@foreach (var pers in Model) 
{ 
    <section> 
     <header>Person is @pers.name</header> 
     @foreach (var item in pers.diplomes) 
     { 
      <p>Dipl: @item.titre</p> 
     } 
    </section> 
} 
    </div> 
</body> 
</html>

來源

2016-10-06 20:38:56 kblau

列表在MVC一對多關係和實體框架

回答

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