//control the numbers
        public void control_prime_numbers(int bas, int son)
        {
            try
            {
                for (int i = bas; i < son; i++)
                {
                    if (function.isPrime(i))
                    {
                        lblPrimeState.Text = "Prime Number";
                        using (linqDataContext linq = new linqDataContext())
                        {
                            var query  = (from p in linq.sayilars where p.sayi < Convert.ToInt32(lblMaxValue.Text) select p);
                            int result = 0;
                            foreach (var item in query)
                            {
                                if (Convert.ToInt32(lblChecked.Text) % Convert.ToInt32(item.sayi.ToString()) == 0)
                                {
                                    result++;
                                }
                            }

                            if (should_check && result == 0)
                            {
                                should_check = false;

                                sayilar primes = new sayilar();
                                {
                                    primes.sayi = Convert.ToInt32(lblChecked.Text);
                                }
                                linq.sayilars.InsertOnSubmit(primes);
                                linq.SubmitChanges();

                                lblChecked.Text = (Convert.ToInt32(lblChecked.Text) + 2).ToString();

                                break;
                            }
                            else
                            {
                                result          = 0;
                                lblChecked.Text = (Convert.ToInt32(lblChecked.Text) + 2).ToString();
                                break;
                            }
                        }
                    }
                    else
                    {
                        lblPrimeState.Text = "Not Prime";
                    }
                }
            }
            catch { }
            finally { }
        }
 partial void Updatesayilar(sayilar instance);
 partial void Deletesayilar(sayilar instance);
 partial void Insertsayilar(sayilar instance);