Hide List Box if

[jessica_0941]

I have two list boxes:  Environment and Services.

In the "Environment" list box, I have P, N, S as options. 

I would like the "services" list box to be disabled if they select S as an option.  Is that possible?

If not, do you have any advice as to what I could do instead of using a list box for the environments?  It must be possible to multi-select so I have considered checkboxes, but I am unsure if a calculation can be used on a checkbox.  Please help.  Thank you so much for any assistance.

[try67 · Accepted solution]

As the custom calculation script of "services" enter the following:

event.target.readonly = this.getField("Environment").valueAsString=="S";

[jessica_0941]

Thank you so much! 🙂