Make the payment terms is read only when the invoice type is STANDERD by using page personalization

Module: Fusion Payables

Fusion Payables--payment terms:

The requirement is to make the payment term field "read only" only of the Invoice type is "STANDARD" on Invoice form,

when we are trying with EL expression #{bindings.InvoiceTypeLookupCode.inputValue=='STANDARD'}

after entering the El expression, Application is not working as expected to make payment term read only for STANDERD Invoice type.