Attach a non-MonoBehaviour Class from another Script to an Instantiated Button

Questions & Answers
1

I want the see the properties of the class Room from another script in the Inspector of an instantiated Button.
It only works when I set class Room to MonoBehaviour, but than I get some warning when I try to create objects out of Room in the class CreateRoom.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

    [System.Serializable] 
    public class Room {
            public int RoomNR;
    
        }

Create Rooms looks like this:

 using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using UnityEngine.UI;
    
    public class CreateRoom : MonoBehaviour {
        public Room room;
    
       public GameObject RoomButtonPrefab;
      void Start()
        {
    
    GameObject RoomButtonPrefabClone = Instantiate(RoomButtonPrefab, new Vector3(0, 0, 0), Quaternion.identity) as GameObject;
    RoomButtonPrefabClone.transform.SetParent(GameObject.FindGameObjectWithTag("Canvas").transform, false);
      RoomButtonPrefabClone.AddComponent<Room>();
    
    }
}

When I try this it says:
The type ‘Room’ cannot be used as type parameter ‘T’ in the generic type or method ‘GameObject.AddComponent()’…

What can I do to solve this?

2

Thanks for the info. I think I will pass on the AddComponent feature.