c# - 反射:结果为带有通用列表的调用方法

我有以下示例类:

public class MyClass<T>
{
    public IList<T> GetAll()
    {
        return null; // of course, something more meaningfull happens here...
    }
}

我想用反射来调用GetAll:

Type myClassType = typeof(MyClass<>);
Type[] typeArgs = { typeof(object) };
Type constructed = myClassType.MakeGenericType(typeArgs);
var myClassInstance = Activator.CreateInstance(constructed);

MethodInfo getAllMethod = myClassType.GetMethod("GetAll", new Type[] {});
object magicValue = getAllMethod.Invoke(myClassInstance, null);

结果是(在以上代码的最后一行):



好吧，第二次尝试:

MethodInfo getAllMethod = myClassType.GetMethod("GetAll", new Type[] {});
getAllMethod = getAllMethod.MakeGenericMethod(typeof(object));
object magicValue = getAllMethod.Invoke(myClassInstance, null);

结果是(在上述代码的第二行):



我在这里做错了什么？

最佳答案

我已经尝试过了，它的工作原理是:

// Create generic type
Type myClassType = typeof(MyClass<>);
Type[] typeArgs = { typeof(object) };
Type constructed = myClassType.MakeGenericType(typeArgs);

// Create instance of generic type
var myClassInstance = Activator.CreateInstance(constructed);

// Find GetAll() method and invoke
MethodInfo getAllMethod = constructed.GetMethod("GetAll");
object result = getAllMethod.Invoke(myClassInstance, null);