private void siparişDetayıEkleToolStripMenuItem_Click(object sender, EventArgs e)
        {
            SiparisDetaySorgulamaFormu f4 = new SiparisDetaySorgulamaFormu();

            f4.Show();
            GirisFormu f1 = new GirisFormu();

            f1.Close();
            this.Hide();
        }
        private void siparişEkleToolStripMenuItem_Click(object sender, EventArgs e)
        {
            SiparisEklemeFormu f2 = new SiparisEklemeFormu();

            f2.Show();
            GirisFormu f1 = new GirisFormu();

            f1.Close();
            this.Hide();
        }