how to create billing invoice and Barcode scan in products

Jan 12 2018 6:15 AM

i am create billing system in c# windows application..

Please tell me Billing System Procedure.
how to add barcode with products
how to scan barcode ?
how to print in crystal report.
how to export excel and pdf formate.
how to convert .exe file with security.
if any one theft my software please security and inform to my email or anything.

so, please tell me or any reference link. please . please tell me as soon as possible.

thank you

Answers (1)