endless loop exception from dispose method

[sivasaravanand]

Hi When call the below function it goes endless loop.

May i know what did i wrong on this.

Thanks, Shiva

try
            {
                DboCampaign _DboCampaign;
               
                using (var context = CreatePartnerContext())
                {
                    using (var scope = context.CreateUnitOfWork())
                    {
                        var p = new DynamicParameters();
                        p.Add("@CampaignID", sqtAffID);
                        _DboCampaign=
                           context.Query<DboCampaign>("dbo.GetAccountID", p, commandType: CommandType.StoredProcedure).FirstOrDefault();
                    }

                }

                using (var context = CreateContext())
                {
                    using (var scope = context.CreateUnitOfWork())
                    {
                        var p = new DynamicParameters();
                        p.Add("@RegistrationCode", _RegistrationRegistration.RegistrationCode);
                        p.Add("@Email", _RegistrationRegistration.Email);
                        p.Add("@Confirmed", _RegistrationRegistration.Confirmed);
                        p.Add("@ConfirmedOn", _RegistrationRegistration.ConfirmedOn);
                        p.Add("@ConfirmedIPAddress", _RegistrationRegistration.ConfirmedIPAddress);
                        p.Add("@Password", _RegistrationRegistration.Password);
                        p.Add("@CampaignId", _DboCampaign.CampaignID);
                        p.Add("@PartnerAccountID", _DboCampaign.AccountID);
                        p.Add("@timezonebyIP", _RegistrationRegistration.timezonebyIP);
                        p.Add("@AccountID", null, dbType: DbType.Int64, direction: ParameterDirection.Output);
                        
                        context.Execute("[Registration].[RegistrationConfirmRegistration]", p, commandType: CommandType.StoredProcedure);
                        scope.SaveChanges();
                        _accountid=p.Get<Int64>("@AccountID");
                    }
                }
               

                using (var context = CreatePartnerContext())
                {
                    using (var scope = context.CreateUnitOfWork())
                    {
                        var p = new DynamicParameters();
                        p.Add("@AffiliateID", _DboCampaign.AccountID);
                        p.Add("@CampaignID", _DboCampaign.CampaignID);
                        p.Add("@SquareTakeoffAccountID", _accountid);
                        p.Add("@licensecount", 0);
                        p.Add("@perlicensecost", 0);
                        p.Add("@Action", "Registered");
                        int i = context.Execute("dbo.INSERTTRANDETAILFROMPRODDB", p, 30, commandType: CommandType.StoredProcedure);
                        scope.SaveChanges();
                        if (i > 0)
                            return _accountid;


                    }
                }

                return _accountid;

            }
            catch (Exception ex)
            {
                SquareTakeoff.Logging.ILogService logService = new SquareTakeoff.Logging.FileLogService(typeof(RegistrationRegistration));
                logService.Error(ex.Message);
                logService.Error(ex.StackTrace);
                if (ex.InnerException != null)
                {
                    logService.Error(ex.InnerException.Message);
                }
                return _accountid;
            }

public void Dispose()
        {
            //Use an upgradeable lock, because when we dispose a unit of work,
            //one of the removal methods will be called (which enters a write lock)
            _rwLock.EnterUpgradeableReadLock();
            try
            {
                while (_workItems.Any())
                {
                    var workItem = _workItems.First;
                    workItem.Value.Dispose(); //rollback, will remove the item from the LinkedList because it calls either RemoveTransaction or RemoveTransactionAndCloseConnection
                }
            }
            finally
            {
                _rwLock.ExitUpgradeableReadLock();
            }

            if (_connection != null)
            {
                _connection.Dispose();
                _connection = null;
            }
        }