EF6：在Sql Server DB的模型生成中无法识别外键

Question

I'm getting started with Entity Framework and I'm trying to generate a model based on an already existing database. Most of the tables have foreign key references to other tables on unique identifiers that do not happen to be the primary key of the table.

It seems like the model generation is completely ignoring the FK references. The error list shows the following:

Error 6035: The relationship ' My foreign key constraint ' has columns that are not part of the key of the table on the primary side of the relationship. The relationship was excluded.

Here's a look at the model and error list

Anybody have any ideas? Is it just that EF doesn't like FK constraints on fields that aren't the primary key?

Thanks in advance.

Answer 1

实体框架不支持唯一的约束，遗憾的是，它将PK作为唯一的候选密钥。