private void bidProduct(int productID, double price)
 {
     if (validateBid(productID, price))
     {
         bool wasBidPlaced = serverProxy.bidProduct(productID, price, itsModel.loggedUser);
         if (wasBidPlaced)
         {
             setState(ClientState.BID_PLACED_OK);
             setState(ClientState.PRODUCT_SELECTED);
         }
         else
         {
             setState(ClientState.BID_REJECTED);
             setState(ClientState.PRODUCT_SELECTED);
         }
     }
     else
     {
         setState(ClientState.BID_REJECTED);
         setState(ClientState.PRODUCT_SELECTED);
     }
 }