private void btnList_Click(object sender, EventArgs e)
 {
     FormOrderList orderList = new FormOrderList();
     orderList.ShowDialog();
     orderList.Dispose();
 }
 private void btnList_Click(object sender, EventArgs e)
 {
     FormOrderList orderList = new FormOrderList();
     orderList.ShowDialog();
     orderList.Dispose();
 }