I have visited hundreds of sites through Google, looking for some instruction "Logic" and serious about how to make a NumericUpDown control for ASP.Net, but apparently is a very well-guarded secret, because I have nowhere find something. Does anyone here have some instructive insight into what I do for a NumericUpDown Control for ASP.Net? On several occasions I have found very good solutions here, I hope that this time is the same. Thank you very much in advance.