Dynamic pricing based on textbox product attributes

Hi everyone,

I'm wondering if there is a way to calculate a price of a product based on textbox input. I know you can update prices via dropdown lists or radio buttons (like in the "build your own computer" demo http://demo.nopcommerce.com/build-your-own-computer).
Is there a easy way to do this?
If you need to write code to achieve this, what would you suggest me to do?


Example:
There's a textbox on the product page where you can type in your name. Based on the users input there is a formula which calculates the price, for example: price = 1.5*textboxstring.Length + 5

Thanks!

Does anybody know how to manipulate/override prices before putting a product to the cart? Nopcommerce is doing that e.g. in the "Build your own pc" example by adding the selected values to the base price of a product.

thanks

You can allow customer to add text as given in http://demo.nopcommerce.com/custom-t-shirt .
For calculation you have to make some code changes in AddProductToCart_Details(int productId, int shoppingCartTypeId, FormCollection form) action of ShoppingCartController.

when you create a product attribute for a particular product and save it a "values" field is created. In here you can add different fields like color, or a dimension, etc.

When you create this value you can make a price adjustment as well (up or down)

When a customer selects the product and selects this particular attribute the price is adjusted accordingly.

Hope that helps