how to increase stock when an item is deleted from cart

in this video i am going to show you that how to increase stock when an item is deleted from cart means when we delete item from cart on that time we are going to increase quantity in the product table and you can learn how to increase stock when product is deleted from cart,how to create shopping cart in asp net using c#,add to cart code in asp.net with cookies, shopping cart asp.net c#,asp.net shopping cart tutorial