Display Only / Non-editable parameters on concurrent programs

Question

Is there a way to have a parameter be "display only" ... and not make it available to the user to change?
Example:
PO Number From:
PO Number To:
User enters PO Number From parameter, then the PO Number To parameter is prefilled with the value entered in PO Number From, but the user cannot change it. But it is available on the parameter screen for the user to see.
Is there a way to do this?

Answer 1

I don't think there's a default way from oracle to make parameter field "read only",
but I can suggest a workaround though for your case.
for example PO_NuMBER_FROM is having value set PO_NUM
you can create new value set specifically for PO_NUMBER_TO (for example PO_NUM_TO).
in the where condition of the new value set you can put condition to make it the same as PO_NUM, for example :
where segment1 = :$FLEX$.PO_NUM
This will make PO_NUMBER_TO LOV could only have one value which is same with PO_NUMBER.
To show the default value in LOV, you can put the default value for paramter PO_NUMBER_TO as SQL Statement with value (for example ) : Select segment1 from po_headers_all where segmetn1 = :$FLEX$.PO_NUM.
To make it perfect, you can make the paramter "Required" checkbox to Yes, so finally it should behave like below :
1. PO_NUMBER_TO LOV will show default value same as PO_NUMBER_FROM shown as default
2. Only one value in LOV, so user can't change into other value.
3. The parameter is required so user can't change it into null.
Hope this helps,