Polling in child component

I have a product list component which have product child components. In each product component i show the current price of the product. Also there is an input box for bidding to the product in each product component. I am polling the product list to show the users the last price of the products. But the bidding input box also refreshing and when i want to type a price to bid for product it is clearing the input because of the polling. How can i make the input box not refresh?