How to add new rows to LOV dynamically?

We have requirement as follows:
in a multirow region, each row has fields like from_serial and to_serial.
A serial can have state (defined but not used/In stores) and status (Good/Bad).
Each field is associated with LOV that lists 'Defined but not used' serials that are in "Good" status.
User can either select a value from LOV or he can generate the serial on the fly (dynamic text should be allowed).
Requirement is if user keys in a 'Defined but not used' serial with status as bad, then an error message should be thrown indicating that the serial is invalid. We already have a pl/sql API which does this validation along with several validations that can not be put into single LOV.
I am not able to achieve this requirement as
1. if I set DisableValidation property of field to True, then it allows free entry/dynamic entry
but doesn't call validation API thru PPR...
2. If I set DisableValidation property of field to false, then it allows to call pl/sql through PPR
but doesn't allow free text entry.
Currently, the LOV is not associated with any controller.
Can someone help me to achieve the requirement?
I guess if we set DisableValidation property of field to false and then somehow populate the keyed-in value in LOV itself then both requirements, Free text entry and calling validation API, can be soled.
Question is "is there any way to populate additional row into LOV"?

Hi,
You can not add rows to LOV, I also faced similar problem around 2 yrs back where we need to add a new supplier to LOV, there I added one more entry using union in LOV VO with supplier name "New Supplier-Not Defined", when user want to add anew supplier the he will select this value from LOV and in LOV event I will check if value selected is "New Supplier-Not Defined" then I will render one more text box and there user can enter a supplier name which does not exist in the system.
There could be some other solutions(work arounds) fro this, please clarify your requirements so that we can look for some other options as well.
If you set the validation property to false then user may save wrong data into system, I think this is not a good option.
Hope this will give you some clue.
Regards,
Reetesh Sharma
Edited by: Reetesh Sharma on Aug 11, 2010 10:16 PM

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