private void button3_Click(object sender, EventArgs e)
        {
            this.Hide();
            frmOreder main = new frmOreder();

            main.ShowDialog();
            this.Close();
        }
        private void orderToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Close();
            frmOreder order = new frmOreder();

            order.ShowDialog();
            this.Close();
        }