EF does not generate foreign key association from foreign key in table
entity-framework
Question
I have a table tblEvent and another table tblContact. There is a field ContactID in tblEvent that is linked by a foreign key to ContactID in tblContact. I've triple checked; the foreign key is in the database.
The Entity Framework model DOES NOT generate a navigation property and foreign key association for it as it does for the other foreign keys.
What could be different about this foreign key that EF does not generate a navigation property for it?
Thanks!
Popular Answer
I found the solution here:
Why doesn't EF 4 generate association for FK relation to column with unique index?
The reason it was not recognizing it is was because the table had a unique non-clustered index on the foreign key field.
Apparently, a unique, non-clustered index allows for a null value which can't be mapped.
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