Grey out parameters

[xbix]

How can we grey out parameters in the component editor in case they are not accessible?
Thanks

[nettoyeur]

In the component editor you can toggle the “enable” parameter for each custom parameter. Another option is to toggle “read only” in that same section.

[xbix]

Thanks.
In my particular case I need to disable the parameter depending on a menu. I have seen the “enable expr” option but I can’t find the right syntax.
I have tried something like:

if menu == 1

but that doesn’t work.

[nettoyeur]

Ah now I’m confused what you’re trying to do, as you asked about how to set it in the component editor. What menu do you mean? Maybe add a screenshot.

[xbix]

Basically, when the menu is at index 1 (name1) I need to enable/disable a bunch of parameters in the component. I guess the “enable expr” is the way to go.

[nettoyeur]

Ah in that case you can just place a Parameter Execute DAT in your component, and make it monitor the menu parameter in question.
Then write your Python code to disable/enable certain parameters of the parent in its “onValueChange” callback function, like this:
parent().par.Myparameter.enable= False
Wrap it in an if/else structure to make it behave depending on what value your menu has.

[xbix]

Ok, that makes sense. I thought we can do it with an expr straight away.
I will try that, thanks a lot!

[threedashes]

@xbix You can also use enable expr and reference another parameter in your component.
i.e. me.par.Enableeq1

For a working example see Palette > Tools > equalizer

[drmbt]

Is this working nowadays? If I create a new Container with a float named Float and a toggle named Toggle, and set the float’s enable expr to ‘me.par.Toggle’, it doesn’t respond to the state of the toggle. Curious if I’m missing something or if this is broken

[lunchwithalens]

I think this might have been fixed in 2020.26630 for a case like a Toggle - but I’m wondering if this can be implemented with a simple expr to evaluate a menu option - like me.par.Method=2. Not having much luck. But if menu (called Method) option is 0 then me.par.Method will disable the other parameter that I am trying to control - other options will enable it.