private void hesabıKapatToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            frmHesapKapatma hk = new frmHesapKapatma();

            hk.MdiParent = this;
            hk.Show();
        }
        private void btnHesapKapat_Click(object sender, EventArgs e)
        {
            frmHesapKapatma hk = new frmHesapKapatma();

            hk.Show();
        }