C# interface type

Interface defines properties, methods and events, which are members of the interface. An interface only contains declarations of members.

Some interface types in C# include.

IEnumerable - The basic interface for all common collections.

#IList > - Generic interface implemented by array and list types.

IDictionary - Collection of dictionaries.

IEnumerable is an interface that defines a single method GetEnumerator, which returns the IEnumerator interface.

This applies to read-only access to collections that implement IEnumerable, which can be used with a foreach statement.

This applies to read-only access to the collection. p>

The following shows the implementation of the 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();
}

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