DbContext.SaveChanges() causing DbUpdateException in loop

Question

I have a process that creates an object that is responsible for inserting into header /detail records. If I run the code to insert into the table on its own, every thing runs fine. However, when I call that code as a separate class within a loop I get an exception:

System.Data.Entity.Infrastructure.DbUpdateException was unhandled
Message=The INSERT statement conflicted with the FOREIGN KEY constraint "FK_CAS_ClaimsAdjustment_Header835". The conflict occurred in database "ERA835DB", table "dbo.Header835", column 'TRANSACTIONID'.

The TRANSACTIONID Column in the Header table is set as Identity=True. The child table, CAS_ClaimsAdjustment has a column TransactionID that is FK to Header.TransactionID.

Why does DBContext.SaveChanges() seem to behave differently depending on how the same code is called?

 foreach (var file in Files)
  { 
          Parser parser = new Parser();
          parser.HandleFile(file);
  }


public class Parser
{

  public void HandleFile(string file)
  {
      using (Model.DbContext dbcontext)
    {
        foreach (var itemn in file)
        {
           Claims claim = new Claims();

            // ...

           dbcontext.Claims.Add(claim);
        }

        dbcontext.SaveChanges();

    }
  }


}

Answer 1

I solved my problem. In my console application I was declaring my entities as "static". Of course this did not work. Once I removed the static keyword everything was fine.