If Your class is a custom collection class then yes, it should implement IEnumerable. In this case a public property for the inner list would be redundant. Imagine a simple class: Anything in .Safi that you emanet iterate over implements IEnumerable. If you're building your own class, and it doesn't https://cobjectkullanm31823.wikilentillas.com/789495/c_ienumerable_temel_Özellikleri_aptallar_için