Dynamic editable functionality in Adobe form

Hi All,

I am Calling a Interactive Adobe form from webdynpro view.

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second applicant(SBPID)--Read only               second applicant name(SNAME)-Calculated read only

I have created Action on second applicant ID (SBPID) ---If SBPID is not empty disable SNAME(for user entry)

I have created Action on second applicant name (SNAME) ---If SBPID is empty enable SNAME(for user entry)

SBPID and TBPID i am displaying from my webdynpro view.

I am unable to achieve this functionality.Any helpful inputs  will be appreciated.

regards,