Disable field on change of tab in D365 CE
Use case – Our requirement is to enable field description field on invoice line form on clicking of tab General.
Let’s see how we can achieve this
Solution –
Step 1 – Create web resource with below function-
 var invoiceLineCustomization =
 {
     unlockField : function(executionContext)
     {
         var formContext = executionContext.getFormContext(); 
            formContext.getControl("description").setDisabled(false);
     },
 } 
Step 2: Add this web resource on tab property event TabStateChange and try.
(path to go to event tab – Click on tab -> change properties -> event)

Output –

Hope this helps !
 
								 
															