Im working on a project and im making an ordering system currently i’ve managed to design the UI and each button/checkbox/combobox to add a value into the final price textfield, but they only add value to there own local item, so nothing is really getting added, i also have a listbox that doesn’t work but it purpose is to show whats in the order and the “add to order” button doesn’t actually do anything since every time i click a button/checkbox/combobox it adds it regardless if i used the add to order function.
so i need help making my software make a pizza order, so select the size which adds a price, and check boxs that will allow toppings to be added, and finally a button that adds all this into the listbox and the order value textfield.