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Entity Frame Work Delete entity optimistic error

    Question

  • Hi Every Body

    I have project that two table of it has one to one relation suppose tables :Media , Movie

    In model I designed that "Movie" Inherit from "Media" on the other hand Movie is a type of Media and has all property of media.

    My problem is when i want to remove Movie i use entity like this :Model.Media.remove(Movie)

    In save change i have this error :

    "Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. See http://go.microsoft.com/fwlink/?LinkId=472540 for information on understanding and handling optimistic concurrency exceptions."

    The solution that i found yet ,all are about updating ,but i don't have any problem with updating.I guess the problem is for inheritance ,but i am not sure.

    Thanks for any guides.

    Regards

    Ali

    • Moved by Mike Laughlin Tuesday, December 15, 2015 1:46 PM From 'Forums Issues' - not reporting an issue with the forums.
    Tuesday, December 15, 2015 7:59 AM

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