The event DataReceived is trigger by the serialport when have some data to read, even Eof character is received. Tipicaly this event is used to get that veri and start a process with it or store. For example, the serialport read a barcode and find it on the database. https://planprojehizmetleri65185.qowap.com/85430993/c-serialport-nedir-Üzerinde-bu-rapor-inceleyin