Entityframework 6 cascading delete

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Hi experts,

i have big problems with cascading deletes in entityframework 6.
i have a simple database with just 2 tables, persons and addresses,
each Person can have 0 or many addresses -> 1:n relationship.
When i delete a person all addresses are also deleted -> GREAT!
But when i try to delete all addresses of a person i get an exception:
"The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related foreign-key property is set to a null value. If the foreign-key does not support null values, a new relationship must be defined, the foreign-key property must be assigned another non-null value, or the unrelated object must be deleted."

I have searched the Internet the last 2 days and the only thing i found that should work was to create a combined Primary key, but this also does not work for me.

Thanks
Manuel

Posted 23-Oct-14 6:36am

m.bleimuth

Updated 24-Oct-14 2:43am

v2

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Maciej Los 23-Oct-14 15:34pm

Please, read the rules of posting questions on CP QA board. No one wants to download the code which can be suspicious. Instead of that post your code and the structure of your database.

m.bleimuth 24-Oct-14 8:43am

sorry for that, i will remove the link

Maciej Los 24-Oct-14 8:50am

Not to worry.
Cheers,
Maciej

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Maciej Los · Accepted Answer · 2014-10-23T09:36:00

Solution 1

Please, read my comment to the question.

Have a look here: Solution to: "The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable"[^]

Posted 23-Oct-14 9:36am

Maciej Los