C# Vending Machine Coding

Can someone help me out with this? imgur: the simple image sharer

I kinda sucks in coding so please do help me out.

Thank you in advance. :D

what part is giving you trouble? what have you tried so far?

the part where you press "A2" e.g. then the message box shows up the price. And then the change come up

That interface looks like old school Windows Forms. Intercept the button press, show a message box with the price and do math to get the change. In C# this amounts to a button press event handler, a call to System.Windows.Forms.MessageBox.Show() and some math.

If it is WPF and you are using MVVM then ensure your view model is the DataContext of the control. Create a DelegateCommand class and bind the Command of the button to the DelegateCommand in your view model. Use System.Windows.MessageBox for message boxes in WPF and the rest is the same math as in the Forms application. If you are not using MVVM then bind to the button press event of the button and put the rest of the button handler logic in the code behind.

If it is Silverlight then stop right now and move on because it has effectively been deprecated.