重复“列”属性
我正在使用 Entity Framework 4.1 创建一个实体，并使用列为列提供不同的名称。我有一个复合键和外键，但我收到错误
public class Account
{
[Key]
[ForeignKey("Account"), Column(Order = 0)]
[Column("Creditor ID", Order = 0)] //PK FK
public int CreditorId { get; set; }
[Key]
[ForeignKey("Account"), Column(Order = 1)]
[Column("[Account No]", Order = 1)] //PK FK
public int AccountNo { get; set; }
}
两者都是主键和外键
我收到以下错误：
重复的“列”属性
I am creating an entity using Entity Framework 4.1 and I am using column to give different names to columns. I have a composite key as well as foreign key but I am getting error
public class Account
{
[Key]
[ForeignKey("Account"), Column(Order = 0)]
[Column("Creditor ID", Order = 0)] //PK FK
public int CreditorId { get; set; }
[Key]
[ForeignKey("Account"), Column(Order = 1)]
[Column("[Account No]", Order = 1)] //PK FK
public int AccountNo { get; set; }
}
Both are primary key as well as foreign keys
I get following error:
Duplicate 'Column' attribute
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评论（1）
好吧，你确实这么做了！每个属性都定义了两个 ColumnArtribute 实例。它们位于不同的行并且位于不同的方括号中这一事实是无关紧要的。
在这两种情况下，第一行的内容看起来都是多余的。
Well, you do! each property has two ColumnArtribute instances defined. The fact that they are on different lines and in different sets of square brackets is irrelevant.
It looks like in both cases the one on the first line is redundant.