我需要知道如何覆盖一定字典的加载方法在一定的静态类。有什么建议？

I need to know how to override the Add-method of a certain Dictionary in a certain static class. Any suggestions?

如果它的事项，该词典是这样的：

If it matters, the dictionary looks like this:

public static Dictionary<MyEnum,MyArray[]>

有什么建议？

推荐答案

您不能覆盖​​添加 词典＆LT的方法;，＆GT; ，因为它是不虚。您可以通过添加一个方法具有相同名称/签名在派生类中隐藏它，但隐藏是不一样的压倒一切的。如果有人强制转换为基类，他仍然会叫错添加。

You can't override the Add method of Dictionary<,> since it's non virtual. You can hide it by adding a method with the same name/signature in the derived class, but hiding isn't the same as overriding. If somebody casts to the base class he will still call the wrong Add.

要做到这一点，正确的方法是创建自己的类实现的IDictionary＆LT;，＆GT; （界面），但的的一个词典＆LT;，＆GT; （类）来代替的是的一个词典＆LT;，＆GT;

The correct way to do this is to create your own class that implements IDictionary<,> (the interface) but has a Dictionary<,> (the class) instead of being a Dictionary<,>.

class MyDictionary<TKey,TValue>:IDictionary<TKey,TValue>
{
  private Dictionary<TKey,TValue> backingDictionary;

  //Implement the interface here
  //Delegating most of the logic to your backingDictionary
  ...
}