Override only Get accessor

Question

I got an abstract class :

abstract class ClassBase
    {
        public abstract string Test { get; }
    }

I want to derive it and by the way add a set accesor

 class ClassDerive : ClassBase
    {
        string _s;

        public override string Test
        {
            get { return _s; }
            set { _s = value; }
        }
    }

I can't do that because i may not override set

 class ClassDerive2 : ClassBase
    {
        string _s;

        public string Test
        {
            override get { return _s; }
            set { _s = value; }
        }
    }

Syntax error

class ClassDerive3 : ClassBase
{
    string _s;

    public override string ClassBase.Test
    {
        get { return _s; }
    }

    public string Test
    {
        set { _s = value; }
    }
}

Syntax error

Any Idea ???

thx

Answer 1

You cannot do exactly what you want to do but here is a workaround:

abstract class ClassBase
{
    public abstract String Test { get; }
}

class ClassDerive : ClassBase
{
    string _s;

    public override string Test
    {
        get { return _s; }
    }

    public void SetTest(String test)
    {
        this._s = test;
    }
}

This will make Test only settable in ClassDerived via the public SetTest method. I know this is not as clean as using the property's setter but it is about as good as it's going to get.