Linq unable to update sql table

  • Hello,

    i have a big problem, try to resolve it since hours.

    can't update a table with Linq, throwing no error, no exceptions when execute.

    the code take the good value but does not update the db.

    here's my code :

    var product = (from p in db.TestMultiLogs

    where p.Nb_Cnk == testNbCNK && p.ShopID == line.Substring(0, 6)

    && p.filename==filename

    select p).FirstOrDefault();

    string bla=line.Substring(116, 6);

    product.Nb_Cnk = bla;

    db.SubmitChanges();

    i'd like to know why it doesn't update my table.

    am i doing something wrong?

    thanks in advance for your precious Help.

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