如何在L2E或EF中使用外键？

Question

I have a User table which has a PrivilegeId foreign key points to a Privilege table and is the primary key there.

In Entity Framework, the VS will not generate a PrivilegeId variable under User for you. It will generate a Privilege property and PrivilegeReference property for you instead.

When I load a User , the Privilege property is null by default. That means EF does not load refered entity for you automatically. I think I may did something wrong? I cannot load Privilege separatedly because I have no info about the Privilege at that time. I guess EF should load the refered entities for me but I missed something. I need the PrivilegeId associated with my User object.

anybody can help me?

EDIT:

another answer: What are Navigation Properties in Entity Framework for?

Answer 1

听起来像您想要Include方法 。

List<User> users = context.Users.Include("Privilege").ToList();