Interfaces define properties, methods, and events, which are the members of the interface.Interfaces contain only the declaration of the members.
Some of the interface types in C# include.
IEnumerable − Base interface for all generic collections.
IList − A generic interface implemented by the arrays and the list type.
IDictionary − A dictionary collection.
IEnumerable is an interface defining a single method GetEnumerator that returns an IEnumerator interface.
This works for readonly access to a collection that implements that IEnumerable can be used with a foreach statement.
The following shows the implementation of IEnumerable interface.
Example
class Demo : IEnumerable, IEnumerator {
// IEnumerable method GetEnumerator()
IEnumerator IEnumerable.GetEnumerator() {
throw new NotImplementedException();
}
public object Current {
get { throw new NotImplementedException(); }
}
// IEnumertor method
public bool MoveNext() {
throw new NotImplementedException();
}
// IEnumertor method
public void Reset() {
throw new NotImplementedException();
}
}Above you can see the two methods of IEnumerator.
// IEnumerator method
public bool MoveNext() {
throw new NotImplementedException();
}
// IEnumertor method
public void Reset() {
throw new NotImplementedException();
}