public class DBManager
    {
        private static string connectionString = ConfigurationManager.ConnectionStrings["30322913_DB"].ConnectionString;

        private SqlConnection cform = new SqlConnection(connectionString);

    public void addContactForm (ContactForm contactForm)
        {
            string sqlQuery = "INSERT INTO ContactForm (EmailAddress, FirstName, LastName, Comments, Subscribe)" +
                "VALUES ('" + contactForm.getEmailAddress() + " ' , '" + contactForm.getFirstName() + " ' , + '" + contactForm.getLastName() + " ' , " +
                " '" + contactForm.getComments() + " ' , ' " + contactForm.getSubscribe() + "' )";

            SqlCommand cmd = new SqlCommand(sqlQuery, cform);

            try
            {
                cform.Open();
                cmd.ExecuteNonQuery();
            }
            catch(Exception ex)
            {
                string error = ex.Message;
            }
            finally
            {
                cform.Close();
            }

        }
    }