using (System.Transactions.TransactionScope scope = new System.Transactions.TransactionScope())
            {
                try
                {
                    /// Metho1
                    using (var context = new DataClasses1DataContext(ConnectionStrings.ConString1))
                    {
                        ///Some code1

                        context.Trans1s.InsertOnSubmit(tbl1);

                        context.SubmitChanges();
                    }

                    /// Metho2
                    using (var context2 = new DataClasses1DataContext(ConnectionStrings.ConString1))
                    {
                        ///Some code2

                        context2.Trans2s.InsertOnSubmit(tbl2);

                        context2.SubmitChanges();

                    }

                     scope.Complete();
                }

                catch (Exception e)
                {
                    TrErrors = TrErrors ?? new List<Errors>();
                    TrErrors.Add(new Errors() { Desctiption = e.Message });
                }
            }