How to add up items in check boxes in c#? : So I'm making a coffee shop (don't ask why :D) and I have 3 items right now with prices https://gyazo.com/8944d8097223667d44095b1c5db8ceeb and I made a list box which lists the ticked boxes. Now I want to create a label or something which says "Total cost:__" and the prices added together. Since I'm quite new to c#, I'm stuck on this and need some help. I don't know what code to paste in to here, so tell me the code you want to see and I'll reply ASAP!