Question

I am developing a level editor in Xna and my question is that when you call a method using “this” as a param is the param a reference or a value?

Ex:

class A_Class
{
    private B_Class bClass;

    public void aMethod()
    {
        bClass.bMethod(this);
    }
}

class B_Class
{
    public void bMethod(A_Class aClass)
    {
        // code
    }
}

Answer 1

It is a reference to the calling A_Class object, because classes are reference-type.
More specifically, as noted in other questions on reference/value, it is passing a value, and that value is a reference to the calling A_Class object.

If rather than A_Class, it was A_Struct, this would be passed by value, as Structs are value-type.