I've been learning c#/asp.net/ado.net for a while now. I'd like to take on a pet project for work that calculates customer rates based on tariffs. To help me along I was wondering of anyone knows any c#/sqlserver opensource programs out there so i can learn a lot of how to do things by reading the source code. Obviously what I want to do will be very different from what I find but I thought I could learn a lot better by reading the code of something I was interested in.
Anything that does calculations based on database values although anything that has specifically tariffs would be amazing.
I dont expect anything perfect so would appreciate any replies.thanks