You implement the
IEnumerable interface each time you want your class to support
For..Each loops. Each time you iterate an object (typically a collection) using
For Each, it is because that object implements
IEnumerable. The .NET Framework offers lots of collections (including generic ones) and enables creating custom collections inheriting from built-in ones; therefore, implementing
IEnumerable will probably be spared for you. It’s important to understand how the interface works, especially for its intensive usage when working with LINQ.
IEnumerable provides one method, named
GetEnumerator, which generally is implemented as follows:
As you can see, the method returns the result of the conversion of the class instance ...