public static void SetDrawerActive(int drawerId)
 {
     if (CurrentActiveRfidDrawer == drawerId)
     {
         return;
     }
     if ((Device != null) && (Device.IsConnected))
     {
         _CurrentActiveRfidDrawer = drawerId;
         if (DrawerInventoryData[_CurrentActiveRfidDrawer] == null)
         {
             DrawerInventoryData[_CurrentActiveRfidDrawer] = new ReaderData();
         }
         Device.ReaderData = DrawerInventoryData[_CurrentActiveRfidDrawer];
         Device.StopField();
         Device.SendSwitchCommand(true, (byte)_CurrentActiveRfidDrawer, false);
     }
 }