private void button1_Click(object sender, EventArgs e)
        {
            Form frmHiltonMusteriler = new frmHiltonMusteriler();

            frmHiltonMusteriler.Show();
            this.Hide();
        }
        private void btnHilton_Click(object sender, EventArgs e)
        {
            Form hiltonMusteriler = new frmHiltonMusteriler();

            hiltonMusteriler.Show();
        }