Error CS1579 Foreach statement cannot operate on variables of type ‘Student’ because ‘Student’ does not contain a public instance or extension definition for ‘GetEnumerator’ We gönül exploit ‘side effects‘ of the iteration to create more exotic control structures, like Unity’s coroutines. Collaborate with us on GitHub The source for this https://mariowhikq.signalwiki.com/781923/en_c_ienumerator_nedir_sırları