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实体框架-错误3007映射关系-外键

[英]Entity Framework - Error 3007 Mapping Relationship - Foreign Key

原文 2016-03-19 18:50:12 1 1 c#/ entity-framework/ foreign-keys/ constraints

I have two tables, BookmakerTeamNames and XMLSoccer-Team. 我有两个表，BookmakerTeamNames和XMLSoccer-Team。

The relationship is: BookmakerTeamNames 0/1 to 1 XMLSoccer-Team 关系为：BookmakerTeamNames 0/1至1 XMLSoccer-Team

They are linked based on TeamID in Table SoccerTeam and XMLSoccerTeamID in BookmakerTeamNames. 它们基于Table SoccerTeam中的TeamID和BookmakerTeamNames中的XMLSoccerTeamID进行链接。

When I validate my model in EF Designer, I receive error 3007 : Problem in mapping fragments starting at line xxx. 当我在EF Designer中验证模型时，出现错误3007：映射从xxx行开始的片段时出现问题。 Column(s) XMLSoccerTeamID are being mapped in both fragments to different conceptual side properties. 列XMLSoccerTeamID在两个片段中都被映射到不同的概念性副属性。

The relationship doesn't exist in my database, as the FK constraint disallows me from having a NULL value. 该关系在我的数据库中不存在，因为FK约束不允许我使用NULL值。 Hence, the reason for trying to add this association. 因此，尝试添加此关联的原因。

Thanks in advance 提前致谢

1 个解决方案

To view the SQL Server error log In Object Explorer, expand a server, expand Management, and then expand SQL Server Logs. 查看SQL Server错误日志在对象资源管理器中，依次展开服务器，“管理”和“ SQL Server日志”。 Right-click a log and click View SQL Server Log. 右键单击日志，然后单击“查看SQL Server日志”。 so you can find exact reason about the error. 因此您可以找到有关错误的确切原因。