i can have one product Screen here we can show cart Added Product and use can change the product Discount & Price & Quanity.
when it changes on price i have one default product minimum Price the product price is not less than to the minimum price so when user chnage the price i can check the user added price is not less than to the minimum price .if it is less to the minimum price i set old price other wise user added Price.
how i can solve it?
i can expect i can use focuse change event ...