Is reading app.config expensive?

Question

No question I am yet to be hit by any read speed bottleneck. I am asking to know; if reading app.config frequently is a bad programming choice. I have known of database oper

Answer 1

Reading from app.config is only first time when you executed the application. After that, it will store this configuration in memory and read from it whenever you need access. That is why, changing in app.config won't affect for current running application.