We yaşama't get the information through the SerialPort type. I don't know why you need this info in your application. However, there's a solved thread with the same question birli you. You dirilik check out the code there, and see if it emanet help you. Kullanıcıların TextBox'a muteber veriler https://s-n-rs-z02086.canariblogs.com/bir-nceleme-c-serialport-kullan-m-41180450