覆盖获取，但不能设置 [英] Override Get, But Not Set

问题描述

我有一个抽象类，定义了一个 GET ，而不是设置，因为据该抽象类而言，它只需要一个 GET 。

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;}
}

然而，在一些派生类的，我需要一个设置属性，所以我在看这个实施

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;}
}

现在的问题是，我得到一个编译错误，说

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

*设定：无法重写，因为*。没有一个重写的set访问。

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

尽管我认为上面的语法是完全合法的。

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

对此有何想法？解决方法，或者为什么会是这样

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

的 修改：我能想到的唯一方法是将两个 GET 和设置作为抽象类，并让子类抛出一个 NotImplementedException 如果设置被调用，这是没有必要的。这东西我不喜欢，有特殊setter方法​​一起 的

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 .

推荐答案

一个可能的答案是覆盖吸气，然后执行一个单独的setter方法​​。如果你不想在基本要定义的属性setter做，你没有太多其他选择。

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;
}

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