private void btnLogin_Click(object sender, EventArgs e)
        {
            if ("     " + txtChapta.Text == lblChapta.Text)
            {
                int     control  = 0;
                UserBLL _userBLL = new UserBLL();
                control = _userBLL.LoginControl(txtTC.Text, txtPassword.Text);
                if (control == -1)
                {
                    DialogResult DRs = new DialogResult();
                    DRs = MessageBox.Show("Henüz üye değilsiniz\nÜye olmak istermisiniz?", "Uyarı", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                    if (DRs == DialogResult.Yes)
                    {
                        SingUpForm singUpForm = new SingUpForm();
                        singUpForm.Show();
                    }
                }
                if (control >= 1)
                {
                    AddReserveForm addReserveForm = new AddReserveForm();

                    _userID = control;
                    this.Hide();
                    addReserveForm.Show();
                }
                else if (control == 0)
                {
                    MessageBox.Show("Hatalı şifre girdiniz.", "Uyarı", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    Random rnd = new Random();
                    _random        = rnd.Next(10000, 99999);
                    lblChapta.Text = "     " + _random;
                }
            }
            else if ("     " + txtChapta.Text != lblChapta.Text)
            {
                txtChapta.Text = "Sağda ne yazıyor?";
                MessageBox.Show("Eşleşmeyen veya Doldurulmamış alanlar var.", "Uyarı", MessageBoxButtons.OK, MessageBoxIcon.Information);
                Random rnd = new Random();
                _random        = rnd.Next(10000, 99999);
                lblChapta.Text = "     " + _random;
            }
        }
        private void btnSingUp_Click(object sender, EventArgs e)
        {
            SingUpForm signUpForm = new SingUpForm();

            signUpForm.Show();
        }