Restrict Sharepoint form section from the user to fill up

Question

I have created a sharepoint which has two sections to fill up. First section is where the user will fill up for train ticket booking and second section is for OFFICE USE ONLY.

This second section will be filled by general office staff after the form is submitted. Now I want to make all the fields in office use section as read only to the user and available for the general office staff only.

How can I achieve this?

Any help will be much appreciated.

Answer 1

If you're using classic view and office staff belongs to a SharePoint Group(or you create a group with these users), you could use JSOM to check whether current user belongs to this group, if user doesn't belongs to the group, disable the section(controls) by jQuery.

Check if current user belongs to SharePoint group via CSOM (JavaScript)

Disable a form element using the .prop() method