无法通过MVC3实体模型的数据注释声明非常规PK
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我正在尝试为实体模型声明主键，该主键最终将被ASP.NET MVC3消耗以创建Controller类，因此，我正在用
[Key]
using System.ComponentModel.DataAnnotations;
public class Foobar
{
[Key]
public string Foo { get; set; }
public string Bar { get; set; }
}
using System.Data.Entity;
public class FoobarDBContext : DbContext
{
public DbSet<Foobar> Foobars { get; set; }
}
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Microsoft Visual Studio
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Unable to retrieve metadata for \'Dotnet.Samples.AspNetMvc.Models.FoobarDBContext\'.
One or more validation errors were detected during model generation:
- System.Data.Edm.EdmEntityType: : EntityType \'Foobar\' has no key defined.
Define the key for this EntityType.
- System.Data.Edm.EdmEntityType: : EntityType \'FoobarDBContext\' has no key defined.
Define the key for this EntityType.
- System.Data.Edm.EdmEntitySet: EntityType: EntitySet __Foobars__
is based on type ?Foo? that has no keys defined.
- System.Data.Edm.EdmEntitySet: EntityType: EntitySet __FoobarDBContexts__
is based on type __FoobarDBContext__ that has no keys defined.
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OK
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没有找到相关结果
已邀请:
1 个回复
闯舱酮
[Key] public string UserName { get; set; }