c# - Override get, but not set

Question

I have an abstract class that defines a get, but not set, because as far as that abstract class is concerned, it needs only a get.

public abstract BaseClass
{
  public abstract double MyPop
  {get;}
}

However, in some of the derive class, I need a set property, so I am looking at this implementation

public class DClass: BaseClass
{
  public override double MyPop
  {get;set;}
}

The problem is, I got a compilation error, saying that

*.set: cannot override because *. does not have an overridable set accessor.

Even though I think that the above syntax is perfectly legitimate.

Any idea on this? Workaround, or why this is so?

Edit: The only approach I can think of is to put both get and set as in the abstract class, and let the subclass throws a NotImplementedException if set is called and it's not necessary. That's something I don't like, along with a special setter method .

Answer 1

One possible answer would be to override the getter, and then to implement a separate setter method. If you don't want the property setter to be defined in the base, you don't have many other options.

public override double MyPop
{
    get { return _myPop; }
}

public void SetMyPop(double value)
{
    _myPop = value;
}