Hi there! I'm task to create an app that will calculate Retail price based on shipping and tax calculations. One requirement in the computation is to select the container size (20 or 40 footer) that the freight cost will be based from. Another requirement is to apply tax percentage based on item category. I would like to show the container size as radio button in a selection and the item category as drop down list.  I already done in computing for the dimension and converting to cubic feet. Now I'm stuck on this issue. How do I get the value selected by the user from the radio button or from the drop down list? Any help is highly appreciated.