Disabling Toggle when used as a menu item

So I am using Toggle and ToggleGroup as the basis for a menu.

The only issue is I need to disable any given toggle once it is selected.

Cannot simply use 'enabled=false' because that breaks the ToggleGroup-Toggle relationship!
This is my custom class extending Toggle.

Any suggestions welcome. Am pulling my hair out.

Code (csharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using System.Linq;
5. using UnityEngine.EventSystems;
6.  
7. public class PointerDownToggle : Toggle {
8.        
9.     string _selected;
10.     public override void OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData)
11.     {
12.        // this.enabled=false;// won't work as it breaks the ToggleGroup ie button state remains selected
13.     }
14.  
15.     public override void OnPointerDown (UnityEngine.EventSystems.PointerEventData eventData)
16.     {
17.       base.OnPointerClick (eventData);
18.         group.NotifyToggleOn(this);        
19.     }
20. }
21.  

 

Toggle.isOn

ToggleGroup:
Namely
ActiveToggles
AnyTogglesOn
allowSwitchOff
SetAllTogglesOff

 

Thanks. So no way to turn off a specific toggle and instead it seems you need to do a check for .isOn before any callbacks are called.

 

togglegroup can't be switched off by its very design. it's basically a radio button, one is always lit.
however, this is exactly what allowSwitchOff is for. they've let you modify the behavior if you need that.