A numeric keypad for payment amount entry in C#

I sold my beloved racing bicycle to buy my first computer, a Sinclair home computer! That was over 30 years ago and I am still in love with what became my profession, and quite honestly my calling! I have received my BS and MS in Mathematics and Computer science and have been working in so many fields of software development, system architecture, and design and I have most enjoyed teaching and writing about programming languages and fiddling with new technologies!
I believe life is too short to ignore learning a programming language!