Custom inspector doesn't set custom objects

Questions & Answers
1

I have a object named Grid and TowerMenu:

public class Grid : MonoBehaviour
{
    public TowerMenu TowerMenu;

    public void Start()
    {
        TowerMenu.Grid = this;
    }
}
public class TowerMenu
{
    public Grid Grid;
    public int a;
}

I want to edit the TowerMenu in Inspector so first I need to create it so I added the code in `Assests/Editor/TowerMenuEditor.cs`:

[CustomEditor(typeof(Grid))]
public class TowerMenuEditor : Editor
{
    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();
        Grid Grid = target as Grid;
        Grid.TowerMenu = new TowerMenu();
    }
}

But I get NullReferenceException in Grid.Start about `TowerMenu = null` when I run my game, although the inspector should have created it.

What is the problem here?

2

you need to make your custom classes serializable if you want them to be saved in the inspector
http://unity3d.com/support/documentation/ScriptReference/Serializable.html

3

you need to make your class serializable if you want the inspector to save it
http://unity3d.com/support/documentation/ScriptReference/Serializable.html