如何将子类字典视为基类字典

在C中,有许多对象都继承自同一个基类。
我还有许多字典,每个子类一个。
我要做的是把所有的字典都加在一本上 表 所以我可以循环浏览它们并做一些工作(比如比较列表等)。

综上所述

Dictionary<string, Child> childObjects = new Dictionary<string, Child>();
List<Dictionary<string, Parent>> listOfDictionaries = new List<Dictionary<string, Parent>>();
listOfDictionaries.Add(childObjects);

我本以为既然孩子是从父母那里继承的,这应该是可行的,但它不会编译。很明显,我对继承和仿制药不了解。)

完整的代码示例

class Program
{
    static void Main(string[] args)
    {
        //Creating a Dictionary with a child object in it
        Dictionary<string, Child> childObjects = new Dictionary<string, Child>();
        var child = new Child();
        childObjects.Add(child.id, child);

        //Creating a "parent" Dictionary with a parent and a child object in it
        Dictionary<string, Parent> parentObjects = new Dictionary<string, Parent>();
        parentObjects.Add(child.id, child);
        var parent = new Parent();
        parentObjects.Add(parent.id, parent);

        //Adding both dictionaries to a general list
        List<Dictionary<string, Parent>> listOfDictionaries = new List<Dictionary<string, Parent>>();

        listOfDictionaries.Add(childObjects);  //This line won't compile

        listOfDictionaries.Add(parentObjects);


    }
}

class Parent
{
    public string id { get; set; }
    public Parent()
    {
        this.id = "1";
    }
}

class Child : Parent
{
    public Child()
    {
        this.id = "2";
    }

}

有什么办法可以达到这个目的吗?