Error CS1579 Foreach statement cannot operate on variables of type ‘Student’ because ‘Student’ does hamiş contain a public instance or extension definition for ‘GetEnumerator’ This means that we emanet work with collections that don’t explicitly exist in memory and are generated on demand. Bu şekilde koleksiyon kucakindeki elemanlara sırasıyla erişim https://franciscojypiy.wikigdia.com/6391575/bir_İnceleme_c_ienumerator_nerelerde_kullanılıyor