How to find a Type that inherits from some BaseClass

Question

I have a class

public class BaseClass
{

}

I have a child class

public class ChildClass : BaseClass
{

}

I want to know what classes/types inherit from BaseClass (find ChildClass for example). I know that i have to use assemble and reflection but don't know how/which function to use.

Edit: ok maybe now you'll get it

Are the two classes in the same assembly? Do you need to be able to find further derived classes, or just direct children? — Jon Skeet, May 17 '18 at 11:03
What's question here? What's the issue with using reflection? — Chetan, May 17 '18 at 11:03
(regarding B001's comment, they're saying that your English is not correct) — user202729, May 17 '18 at 11:04
@user202729 no you are wrong! I am telling him (in his language) that I dont understand his question... and nobody had asked you for interpreting my comment — B001ᛦ, May 17 '18 at 11:11

Fedor · Accepted Answer · 2018-05-17T11:12:19.827

1

typeof(BaseClass).Assembly.GetTypes().Where(type => type.IsSubclassOf(typeof(A)));

You can do this by two step:

Get all types from Assembly
Find only classes which is subclasses of BaseClass

edited May 17 '18 at 11:12

answered May 17 '18 at 11:11

Fedor

181
5

Thx you, @B001ᛦ – Fedor May 17 '18 at 11:17
wont get all subtypes (as could be in a separate assembly) but best i think we will get +1 – MikeT May 17 '18 at 11:18

How to find a Type that inherits from some BaseClass

1 Answers1