c# - 将字符串映射到实体以与通用方法一起使用

Question

如果我有以下类(class):

class Fruit {}
class Apple : Fruit {}
class Orange : Fruit {}

我有方法:

public List<Fruit> getFruit<T>() where T : Fruit {

 List<Fruit> fruitList = new List<Fruit>();
 return fruitList.AddRange(session.QueryOver<T>().List());

}

是否可以有一个字典将字符串映射到可以传递给此通用方法的类型，以便我可以查询正确的表？

例如:

Dictionary<string, type> typeMapper = new Dictionary<string, type>()
{
 {"Apple", AppleType??}
};

var myType = typeMapper["Apple"];
List<Fruit> fruitList = getFruit<myType>();

Answer 1

使用 Dictionary 来存储委托(delegate)怎么样？

    Dictionary<string, Func<List<Fruit>>> typeMapper = new Dictionary<string, Func<List<Fruit>>>()
    {
        {"Apple", () => { return getFruit<Apple>(); } },
        {"Orange", () => { return getFruit<Orange>(); } }
    };

    List<Fruit> fruitList = typeMapper["Apple"]();