在子嵌套类c#中继承和扩展父嵌套类

Question

您好，我一直在努力解决如何从父类的嵌套类继承和扩展子类的嵌套类中的属性。下面的例子：

public class AttributeViewModel{
   //Common Properties...

   public AttributeViewModelSettings Settings {get; set;}

   public class AttributeViewModelSettings {
     //Common Settings
   } 
}

public class ListAttributeViewModel : AttributeViewModel {
   //List specific properties...

   public ListAttributeViewModelSettings Settings { get; set; }

   public class ListAttributeViewModelSettings : AttributeViewModelSettings {
     //Settings Specific to Child Class
   }
}

我们这样做是因为我们还不确定用户可以选择的每个可能的属性需要哪些设置。这样做可以让我们轻松更改这些设置，但我就是想不出正确的方法来处理这样的事情。

Answer 1

如果我正确理解了您的问题，您可以尝试使用泛型：

public abstract class AttributeViewModelBase
{
    public abstract AttributeViewModelSettings BaseSettings{ get; }
    public class AttributeViewModelSettings
    {
        //Common Settings
    }

}
// Define other methods, classes and namespaces here
public class AttributeViewModel<T>: AttributeViewModelBase 
    where T: AttributeViewModelBase.AttributeViewModelSettings
{
    //Common Properties...
    public override AttributeViewModelSettings BaseSettings => Settings;
    public T Settings { get; set; }

}

public class ListAttributeViewModel : AttributeViewModel<ListAttributeViewModel.ListAttributeViewModelSettings>
{
    //List specific properties...

    public ListAttributeViewModelSettings Settings { get; set; }

    public class ListAttributeViewModelSettings : AttributeViewModelSettings
    {
        //Settings Specific to Child Class
    }
}