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エンティティフレームワークv6.1.3を使用してデータをバインドしようとしていますが、このエラーメッセージが表示されますEntityTypeにキーが定義されていません。このエンティティタイプのキーを定義します。エラー複合キーの "EntityTypeにキーが定義されていません"
public class CommunicationCollection
{
[Key, Column(Order = 0)]
[ForeignKey("FK_CommunicationCollection_Communication")]
public Guid CommunicationId;
[Key, Column(Order = 1)]
[ForeignKey("FK_CommunicationCollection_Collection")]
public Guid CollectionId;
}
この
public class CommunicationCollection
{
[Key, Column(Order = 0)]
[ForeignKey("FK_CommunicationCollection_Communication")]
public Guid CommunicationId;
[Key, Column(Order = 1)]
[ForeignKey("FK_CommunicationCollection_Collection")]
public Guid CollectionId;
public virtual Communication Communication { get; set; }
public virtual Collection Collection { get; set; }
}
もこの
public class CommunicationCollection
{
[Key, Column(Order = 0)]
public Guid CommunicationId;
[Key, Column(Order = 1)]
public Guid CollectionId;
}
とDB中:私は、次のアプローチを試してみた
(私は複合キーを持っています)私は
CREATE TABLE [CommunicationCollection](
[CommunicationId] [uniqueidentifier] NOT NULL,
[CollectionId] [uniqueidentifier] NOT NULL,
CONSTRAINT [PK_CommunicationCollection] PRIMARY KEY CLUSTERED
(
[CommunicationId] ASC,
[CollectionId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 80) ON [PRIMARY]
) ON [PRIMARY]
GO
ALTER TABLE [CommunicationCollection] WITH CHECK ADD CONSTRAINT [FK_CommunicationCollection_Collection] FOREIGN KEY([CollectionId])
REFERENCES [Collection] ([CollectionId])
GO
ALTER TABLE [CommunicationCollection] CHECK CONSTRAINT [FK_CommunicationCollection_Collection]
GO
ALTER TABLE [CommunicationCollection] WITH CHECK ADD CONSTRAINT [FK_CommunicationCollection_Communication] FOREIGN KEY([CommunicationId])
REFERENCES [Communication] ([CommunicationId])
GO
ALTER TABLE [CommunicationCollection] CHECK CONSTRAINT [FK_CommunicationCollection_Communication]
GO
何が分からないのでしょうか? ありがとう!
ありがとうございます!それは私の問題を解決した – WNB