Entity Framework model and foreign key property

Posted by verror on Stack Overflow See other posts from Stack Overflow or by verror
Published on 2010-05-02T07:47:59Z Indexed on 2010/05/02 7:57 UTC
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I have 2 tables that I import to EF model.
First table has a property [section] that acts as foreign key to the second table. When I map this property in model to the table and try to compile I get this error:

Problem in Mapping Fragments starting at lines 158, 174: Non-Primary-Key column(s) [Section] are being mapped in both fragments to different conceptual side properties - data inconsistency is possible because the corresponding conceptual side properties can be independently modified.

If i remove this property from the model it passes, but when I query the data I don't have the section field.

I know that I can get it by using the navigation field and reading this property from the second table, but to make it work I must include the other table in my query.

var res  = from name in Context.Table1.Include("Table2")...

Why do I need to include the association just for one field?

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