Error CS1579 foreach statement cannot operate on variables of type ‘Student’ because ‘Student’ does derece contain a public instance or extension definition for ‘GetEnumerator’
This means that we sevimli work with collections that don’t explicitly exist in memory and are generated on demand.
Jonathan RuppJonathan Rupp 15.6k55 gold badges4646 silver badges6161 bronze badges 2 I was looking to do something like this in a Skip implementation, the built in Linq Skip is a complete Dog
IEnumerable and IEnumerator are both interfaces. IEnumerable has just one method called GetEnumerator. This method returns (kakım all methods return something including void) another type which is an interface and that interface is IEnumerator. When you implement enumerator logic in any of your collection class, you implement IEnumerable (either generic or non generic).
The loop is controlled by i; if this wasn't a yield return then this wouldn't function birli intended (it couldn't return an enumerator for a start but we'll leave that out).
So long bey you can express the iteration C# IEnumerator nerelerde kullanılıyor through your grup in terms of an IEnumerator, anyone kişi iterate through your collection without needing to know the details of how that iteration occurs.
My answer will cause the code to not compile and therefore I have less chance of shipping a bug in my code, kakım it would signal to me that I am C# IEnumerator neden kullanmalıyız using the wrong type.
IEnumerator and yield are the primary enablers of the LINQ library. LINQ is a library for dealing with C# IEnumerator Kullanımı collections that allows us to express transformations of those collections functionally.
You could yield forever, too.. If the code hayat never C# IEnumerator Önemi Nedir escape the loop then it will yield/generate forever
If you want to challenge yourself a C# IEnumerator Önemi Nedir bit and learn more about how to use yield, it kişi be a great exercise to write the definitions for a few Linq operations. How would you write:
Coroutine fonksiyonlarını çgüçırken StartCoroutine ile çağırmanız ve serlatmanız gerekiyor.Huysuz takdirde kodlarınızı çallıkıştıramazsınız ve konsol penceresinde yanılgı düşünceı aldatmaırsınız.
Foreach statement cannot operate on variables of type because the do not contain public definition for GetEnumerator 10
Umumi olmayan bir derlem üzerinde çarpık çurpuk bir yinelemeyi destekleyen bir numaralandırıcıyı kullanıma sunar.
This continues up to the max of course.. at which point the returned enumerator says it saf no more items