I got the sAuthorizeNet/ sample-code-charp from github.
I have .Net Framework 4.5 as well as 4.8.
How do I add a reference to my c# project?
I do not see it listed in the properties when I try to add it.
I have built other c# projects never had this problem before.
I am using Visual studo Professional 2017.
TIA
steve2301
