实体框架 CTP 5 相关属性不起作用

发布于 2024-10-28 18:49:49 字数 900 浏览 0 评论 0 原文

使用实体框架 CTP 5，我尝试在我的类中创建外键列表。但我不断收到错误消息，提示无法找到相关内容。

这是代码：

public class VertragsVerweis : GenericBLL
{
    [Key]
    public String Uid
    {   
        get;
        set;
    }

    public String VertagsVerweisNr
    {
        get;
        set;
    }

    public String Bezeichnung
    {
        get;
        set;
    }

    public Boolean Reparatur
    {
        get;
        set;
    }

    [RelatedTo(RelatedProperty="Artikel")]
    public List<Artikel> Artikelen
    {
        get;
        set;
    }
}

这给了我错误：

错误 2 找不到类型或命名空间名称“RelatedTo”（您是否缺少 using 指令或程序集引用？）C:\Documents and Settings\wep\Bureaublad\WEPProject\branches\codefirst Entity Framework\BusinessLogic \BusinessLogic\VertragsVerweisBLL.cs 37 10 BusinessLogic

由于某种原因，它确实可以识别 System.ComponentModel.DataAnnotations 中的键属性。为什么它无法识别RelatedTo？

原文

Using Entity Framework CTP 5 I am trying to make a list of foreign keys in my class.
But I keep getting an error which says RelatedTo can not be found.

Here is the code:

public class VertragsVerweis : GenericBLL
{
    [Key]
    public String Uid
    {   
        get;
        set;
    }

    public String VertagsVerweisNr
    {
        get;
        set;
    }

    public String Bezeichnung
    {
        get;
        set;
    }

    public Boolean Reparatur
    {
        get;
        set;
    }

    [RelatedTo(RelatedProperty="Artikel")]
    public List<Artikel> Artikelen
    {
        get;
        set;
    }
}

This gives me the error:

Error 2 The type or namespace name 'RelatedTo' could not be found (are you missing a using directive or an assembly reference?) C:\Documents and Settings\wep\Bureaublad\WEPProject\branches\codefirst Entity Framework\BusinessLogic\BusinessLogic\VertragsVerweisBLL.cs 37 10 BusinessLogic

For some reason it DOES recognize the Key Attribute from System.ComponentModel.DataAnnotations. Why does it not recognize RelatedTo?

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