在C＃中声明父接口中的属性getter和子接口中的setter

Question

I want to declare the getter of a property in a parent interface and the setter in the child interface:

    public interface IReadOnlyValue
    {
        int Value { get; }
    }
    public interface IValue : IReadOnlyValue
    {
        int Value { set; }
    }
    public class Value : IValue 
    {
        int Value { get; set; }
    }

This doesn't compile because the Value from IValue hides the one from IReadOnlyValue . Is there a way to make this work, knowing that I need Value to be a property ?

Answer 1

It seems that it's a class name Value that's wrong:

Error CS0542 'Value': member names cannot be the same as their enclosing type

(bold is mine). If you rename Value to, say, MyValue it'll be OK:

  public interface IReadOnlyValue {
    int Value { get; }
  }

  // It seems that IValue should have both "get" and "set"
  // See IList<T> and IReadOnlyList<T> as an example
  // However, you can drop "get" if you want
  public interface IValue {
    int Value { get; set; }
  }

  public class MyValue: IReadOnlyValue, IValue {
    public int Value { get; set; }
  }