Custom fields

[lgiulio]

Hello,

I have a product that has various sizes ( from 1/2 Kg , 1 Kg ) and the prices change.

I created a product father and two sons .

Should I create a custom field where the user selects the format and automatically changes the price .

I tried all kinds of field , but I could not .

Can you help me?


Thank you

[jenkinhill]

Maybe look at http://extensions.virtuemart.net/products/quantity-related-price-calculation-detail

or  see the docs: 
http://docs.virtuemart.net/manual/general-concepts/186-derived-products-product-pattern-child-products.html
http://docs.virtuemart.net/manual/general-concepts/212-customfields.html