private void yenileToolStripMenuItem_Click(object sender, EventArgs e)
        {
            MusteriHizmetleriAdmin kab = new MusteriHizmetleriAdmin();

            kab.Show();
            this.Hide();
        }
        private void teknikerSilToolStripMenuItem_Click(object sender, EventArgs e)
        {
            MusteriHizmetleriAdmin mha = new MusteriHizmetleriAdmin();

            mha.Show();
            this.Hide();
        }