private void Btn_Send_Click(object sender, EventArgs e)
 {
     table.Table_ID = Convert.ToInt32(Cmb_TableSelection.SelectedValue);
     order          = OrderList.GetOrder();
     order.Staff_ID = member.Staff_ID;
     order.Table_ID = table.Table_ID;
     ord.SendOrder(order, (((Button)sender).Name == "Btn_Send") ? false : true);
     OrderList.Clear();
     if (((Button)sender).Name != "Btn_Send")
     {
         this.Close();
     }
 }