Where did the interface methods go?

Question

OOP

interface IView
{
  void Show();
  void Close();
}

interface IStartView: IView
{
  String[] A{get; set;}
}

class StartView: Form, IStartView
{
  String[] A{get; set}
  //...
}

How to "place" the Show/Close methods from IView in the StartView class?

Changing the interface of IStartView

interface IStartView: IView
{
  String[] A{get; set;}
  void Show();  //Ошибка
  void Close(); //Ошибка
}

Надо добавить слово new, которое тут не нужно.

Changing the StartView class

class StartView: Form, IView, IStartView
{
  //....
}

Предлагает убрать IView

Answer 1

There is such a magic button in VS:
If you are not in VS, then here:

class StartView : IStartView
    {
        string[] IStartView.A
        {
            get
            {
                throw new NotImplementedException();
            }

            set
            {
                throw new NotImplementedException();
            }
        }

        public void Close()
        {
            throw new NotImplementedException();
        }

        public void Show()
        {
            throw new NotImplementedException();
        }
        //...
    }

Answer 2

class StartView : IStartView
    {
        public void IView.Close()
        {
            //...
        }
///...
    }