private void AdminLogin_Click(object sender, EventArgs e)
        {
            DVDExpressDataContext db      = new DVDExpressDataContext();
            Table <Login>         Logins  = db.GetTable <Login>();
            Table <Member>        Members = db.GetTable <Member>();
            string username        = UsernameBox.Text;
            string password        = PasswordBox.Text;
            bool   loginSuccessful = false;
            var    loginQuery      =
                from login in db.Logins
                where (login.Username == username && login.Password == password && login.IsAdmin == true)
                select login.MemberID;



            foreach (var login in loginQuery)
            {
                var memberQuery =
                    from account in db.Members
                    where account.MemberID == login
                    select account;
                foreach (var account in memberQuery)
                {
                    AdminMainPage homePage = new AdminMainPage();
                    homePage.adminAccount = account;
                    homePage.Show();
                    MessageBox.Show("Login Succesful");
                    loginSuccessful = true;
                    this.Hide();
                }
            }
            if (loginSuccessful == false)
            {
                MessageBox.Show("Incorrect Username or Password.");
            }
        }
 private void ReturnButton_Click(object sender, EventArgs e)
 {
     this.Close();
     adminPage.Show();
 }