private void RegisterToMainRegisterToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Hide();

            Main_Register m = new Main_Register();

            m.selectedId = selectedId;
            m.Show();
        }
        private void Showmainregister(int selectedId, bool IsUpdate)
        {
            this.Hide();
            Main_Register m = new Main_Register();

            m.IsUpdate   = IsUpdate;
            m.selectedId = selectedId;

            m.Show();
        }