How do I find out if a Property / Field is a Reference Type (using Reflection)

I have already checked out this link. There was the problem, that generally there was an unexact terminology of "reference". So firstly I want to clarify when in my opinion a Type is a reference Type.

This is the behavior of a not reference Type.

        string bla = "abc";
        string blob = bla;
        bla = "cde";
        // bla = "cde" and blob = "abc"

This is the behavior of a reference Type

        Person jens = new Person("Jens");
        Person frank = jens; // doesn't make any sense i know
        frank.Name = "Frank";
        //jens.Name = "Frank" and frank.Name = "Frank"

As you can see once you reference only Types pass a Reference (like a Pointer in c). You can also achieve that behavior for nonreference Types by using the ref Keyword.

What I am searching for is a Property of the Type Class that indicates whether the type is a reference type or not.

It should also work for structs, simply for everything where you can "store" something in it.

According to the link I provided above there are multiple Properties, all slightly different

• IsClass


• IsPrimitive


• IsValueType

Which one do I need do use? None of them seems to fit my conditions.

sorry for my bad english :)