Set aside the decision logic. Can you write the simplest possible SL application that (a) reads an OssMarginMonth, (b) modifies it, and (c) saves it?

 

The application should do nothing else except launch, read, modify, and save.

 

If you still get the error, we'll ask that you send us something we can investigate here. Unfortunately, we can't manage an entire application. We need to work with something a bit more focused. Accordingly, we'll ask that you

 

1) Strip it down to a one table database with just OssMarginMonth

1a) Enter a few rows of sample data

2) Rebuild the sample (as just described) to talk to that toy database

3) Reproduce the error again

4) Zip it all up and send it to us

 

We regret that you're having trouble. Hope we can get this resolved quickly.

 

I am getting an error "SET TRANSACTION must be first statement of transaction." when I try to save an entity to the database. Below is the code. Please let me know in what circumstances this error would generate.

I appreciate your help. Thank you.

 

public static void SetMonth(OssMarginEntityManager em, DateTime beginDate, DateTime endDate)
        {
            var item = (from o in em.OssMarginMonths where (o.OssMarginMonthId == 1) select o).FirstOrNullEntity();

            if (item != null && item.OssMarginMonthId  >  0)
            {
                item.BeginDate = beginDate;
                item.EndDate = endDate;
                var entities = new List<Entity> { item };
                em.SaveChangesAsync(entities, SetMonthCallback, null);
            }
        }